North of England and Scotland Study of Tonsillectomy and Adeno-tonsillectomy in Children (NESSTAC) : a pragmatic randomised controlled trial with a parallel non-randomised preference study

Article history

The research reported in this issue of the journal was commissioned by the HTA programme as project number 99/20/03. The contractual start date was in September 2001. The draft report began editorial review in February 2009 and was accepted for publication in July 2009. As the funder, by devising a commissioning brief, the HTA programme specified the research question and study design. The authors have been wholly responsible for all data collection, analysis and interpretation, and for writing up their work. The HTA editors and publisher have tried to ensure the accuracy of the authors’ report and would like to thank the referees for their constructive comments on the draft document. However, they do not accept liability for damages or losses arising from material published in this report.

Declared competing interests of authors

None

Copyright statement

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Scientific background

In the UK, sore throats cost the NHS an estimated £60 million per annum in GP consultations, result in 90,000 tonsillectomy procedures, approximately half of which are in children, and result in a loss of more than 35 million school or work days annually. 1 The incidence of tonsillectomy has risen since the early 1990s, although levels are still much lower than in the 1930s, when 100,000 operations were performed on UK school children. 2 Adenoidectomy is performed with tonsillectomy in about one third of patients. Private medical insurance is associated with higher selective surgical rates for tonsillectomy or adeno-tonsillectomy in children under the age of 7 years3 and 16% of all UK ear, nose and throat (ENT) surgical activity is in the independent sector. Therefore, figures based purely on NHS returns inevitably underestimate the total activity. In addition to the health-care costs, tonsillectomy incurs parental costs as one parent usually resides in hospital overnight. Thereafter the average time to return to normal activity for children under 15 years of age is 12 days. 4

There is a broad similarity in the criteria for tonsillectomy in clinical guidelines in the UK5,6 and North America. 7 The minimum criteria are typically a 2-year history of three to four sore throats of moderate severity (5-day duration) per annum. This is despite evidence that even histories that seem impressive may not be confirmed on close scrutiny in the majority of cases. 8 The complex psychosocial influences on tonsillectomy rates include parental enthusiasm for intervention,9 lack of information10 and maternal use of psychotropic drugs which increases twofold the rate of consultation for childhood sore throat. 11,12 Guidelines may not be uniformly implemented, even when locally derived. Surgeons tend to break guidelines more often in favour of performing surgery than withholding surgery. 5

National and international variations in the rates of adeno-tonsillectomy have been recognised for decades. Even in the 1930s, 50% of children in the UK and the USA received a tonsillectomy, while the rate was 0.5% or lower in Germany. 2 A survey of such variation in Quebec, highlighted the importance of clinical uncertainty among physicians about the recommendation for surgical intervention,13 providing further support for conducting primary research. The Scottish National Tonsil Audit showed that rates of tonsillectomy in childhood varied from less than 4 per 10,000 children in the Forth Valley to almost 10 per 10,000 children in Dumfries and Galloway. 14

Differential costs and benefits of surgery at different age groups are not known. The tonsils are traditionally thought to undergo a period of physiological enlargement around the age of school entry. Older children and adolescents may have a somewhat different natural history, and illness at higher ages has rather different (educational) implications.

Mortality from tonsillectomy has been estimated at between 1 per 16,000 and 1 per 35,000 operations,15 but surgical risk at this level is hard to measure, conceptualise and convey. The major non-fatal complications are infection, haemorrhage (2.15%) and pain, which lasts on average 5–6 days16,17 and may be inadequately treated in children. 18 Haemorrhage is unpleasant, it requires intravenous fluid administration, with or without blood transfusion, and a return to theatre. The reported rate of second anaesthetic for haemostasis varies widely from 0.75% in one British review4 to as low as 0.06% in a study of almost 9409 children in Toronto. 19 In the UK, post tonsillectomy, it has been reported that the readmission rate is as high as 7%,4 but an internal audit found that in Newcastle it was only 2.3% for children receiving adeno-tonsillectomy (unpublished data; Department of Clinical Effectiveness, Freeman Hospital, Newcastle, 1999). The overall reported complication rate ranges from 8%14 to 14%,17 the majority of complications being relatively minor such as sore throat, nausea, fever and dysphagia. Most 2–10 year olds undergoing surgery show behavioural changes such as attention seeking, temper tantrums and night waking and there is also anecdotal evidence for depression after tonsillectomy. 20 Younger children, because of cognitive immaturity, seem less able to adapt to hospitalisation. 21,22 Late sequelae may include lower postoperative serum immunoglobulin levels, but these have been ascribed to reduction in antigen stimulation. 23 There is continuing debate about the suggestion that tonsillectomy increases the risk of Hodgkin’s lymphoma;24 a large Scandinavian population cohort study found an increased risk of Hodgkin’s disease, especially in younger children. 25 The risk of transmission of new variant Creutzfeldt–Jakob disease (nvCJD) from contaminated tonsillectomy instruments remains quite unquantified. Some UK centres continue to use disposable tonsillectomy sets.

Despite the frequency of tonsil dissection for recurrent sore throats in children, there is a remarkable lack of robust evidence for its efficacy. Uncontrolled patient reports suggest the procedure to be very effective, but recurrent sore throat, particularly in childhood, may be a self-limiting illness. Where non-intervention control groups have been studied, the benefits of adeno-tonsillectomy seem almost to disappear after 2 years. Available studies are either 20–30 years old or confined to small numbers of severely affected individuals with limited general applicability. The Cochrane Review concluded that there is no evidence from RCTs to guide the clinicians in formulating the indications for surgery in children or adults. 26 The authors surmised that there is a need for high quality evidence from RCTs to establish the effectiveness of (adeno-)tonsillectomy and that these should assess the effectiveness of the procedure in patients with throat infections of differing severity and frequency. A recent Dutch RCT of adeno-tonsillectomy versus watchful waiting reported no differences between treatment arms for children with mild symptoms, and only a small difference of less than one episode of fever a year between treatment arms for children with moderate symptoms. 27

The Scottish National Tonsillectomy Audit14 showed high levels of patient satisfaction and revealed that 80% of subjects did not consult a doctor in the subsequent 12 months. However, over the past 30 years a number of controlled studies with longer follow-up indicates marginal and diminishing levels of clinical benefit over a period of non-intervention. There are no substantial claims for the benefit of childhood tonsillectomy after 2 years. Roos and colleagues28 assessed the benefit to be 1.0–1.5 fewer sore throats (0.5–1.0 episodes per annum) over the first 2 years after surgery in those with three to four episodes per annum preoperatively. Other studies29–31 showed benefits of the order of 1.5 fewer sore throats versus controls in the first postoperative year and, on average, one fewer episode in the second year. All of these and other available studies provide inadequate evidence due to poor definition of entry and outcome criteria, failure to include intention-to-treat calculations and small or skewed samples. 32 Even the only generally acceptable scientific study by Paradise and colleagues17 suffered from having comparatively small numbers of participants drawn form a skewed population of more severely affected children. The benefits of surgery were more marked (approximately 1.75 fewer episodes in year 1, 1.50 in year 2) but equally short lived. The drop-out rate was 34% by the end of year 2, and one in three of the control group underwent surgery and were excluded from the analysis. Also, the very active therapy of the control arm may have mitigated any impact of surgery. The Paradise group went on to study a more typical, i.e. less severely affected, group of children, but the full results of this study, near completion in 1992, have never been reported.

Weight gain is a cited supplementary benefit of tonsillectomy. Two studies showed accelerated weight gain postoperatively, but as the children were shown to be of normal or above average height and weight preoperatively, this effect may be undesirable. 33

A straw poll of consultant otolaryngologists asked what level of reduction in sore throat would justify removal of the tonsils? Replies were remarkably consistent – at least two sore throats fewer per annum. No published trial to date shows a benefit of this magnitude, even in the first year after surgery.

We therefore designed a pragmatic RCT to answer the key research question: ‘What is the effectiveness and cost-effectiveness of (adeno-)tonsillectomy in comparison with standard non-surgical management in children aged under 16 with recurrent throat infections?’ Assessment of outcome emphasised those that were important to children themselves and their parents or carers. Our specific research questions were:

• Does tonsillectomy or adeno-tonsillectomy reduce the number of episodes of recurrent sore throats among children to a clinically significant extent?

• Are there differences in clinical outcome for the age groups: 4–7, 8–11 and 12–15 years?

• What is the cost-effectiveness of tonsillectomy/adeno-tonsillectomy for children, and what are the costs and benefits to families?

• What are the important outcomes of tonsillectomy/adeno-tonsillectomy for children and their parents/carers, and what is the importance of these to children and their parents’ quality of life?

• What are parents’ (and older children’s) preferences for different treatment options for recurrent sore throat?

• How representative of the target population are trial participants?

Structure of this report

This report contains eight chapters and eight associated appendices. The original study protocol is reproduced in Appendix 1. In Chapter 2 we describe the methods used in the study. This includes a comprehensive account of the rationale and methods used in the prospective pragmatic RCT and prospective non-randomised cohort study of non-trial participants comparing surgical intervention with conventional medical treatment and changes to the original protocol. Chapter 3 provides the main results of the trial and cohort study using the analysis strategy described in the original protocol. Chapter 4 describes a small qualitative study of parents and teenagers to identify the experience of recurrent sore throat and their preferences for different treatment options; the study was used to confirm person-centred outcomes and the development of a utility study. Chapter 5 describes a small utility study to assess the preferences of parents and children for the treatment of recurrent sore throat. Chapter 6 describes the economic analysis. Chapter 7 discusses the implications of the study results for the NHS, and Chapter 8 provides conclusions for practice, policy and further research.

Rationale for design

Randomised controlled trials are the gold standard study design for the evaluation of health-care interventions in an evidence-based health-care system. The assessment of clinical effectiveness and cost-effectiveness of health technologies that are well established and widely used in clinical practice is particularly challenging in HTA where patients (or clinicians) express preferences for particular treatment regimes and are not in treatment equipoise. Standard RCT designs used where there are strong patient preferences experience high non-participation (refusal) rates and, consequently, increased confounding and decreased generalisability. Patient preference trial designs that combine the RCT with a non-randomised experimental design are increasingly used where there are strong patient preferences. 34,35

Tonsillectomy and adeno-tonsillectomy for the treatment of children with recurrent sore throat has been routine clinical practice for over 50 years. When developing the study, we anticipated patient preferences to increase the non-participation rate in a standard RCT design, although there was little evidence that there was parental enthusiasm for surgical intervention. 9 We therefore designed a study that combined a pragmatic RCT36 with a parallel non-randomised cohort.

Patient preference trials of interventions for childhood conditions also raise the question of ‘whose preference?’, particularly where teenage children are participating. Although we did not attempt to differentiate between the preferences of parents and children, when recruiting participants to the study we did collect ‘patient-reported’ outcome data from both parents and teenage children.

Trial and cohort

Participant flow

Figure 1 shows the CONSORT flow chart of children in the study.

FIGURE 1.

CONSORT flow chart.

Follow-up

Trial and cohort participants were followed up for up to 2 years from time of randomisation. Follow-up was undertaken in three ways:

1. Self-completion health diaries (see Appendix 6). These took the form of booklets, each corresponding to a time period of 28 days (4 weeks). A total of 24 booklets were sent out to study participants at 4-weekly intervals.

2. Telephone prompt interviews were introduced part-way through the study because of concern about the low response rates to the health diary. If a due diary was not returned within 28 days, a telephone call was made to the relevant study participant who was then asked to provide a limited amount of information about the child’s health.

3. Self-completed postal outcome questionnaires (see Appendix 5) were administered at 3, 12 and 24 months after entry into the study.

Health diaries

Each participant was sent 24 4-weekly diaries. There was a poor response rate for both trial and cohort participants. Of trial participants, 81.7% (219/268) returned at least one diary. The mean number of diaries returned per child in the trial was 9.91. The overall diary response rate for trial participants was 41.3%. Of cohort participants 65.5% (302/461) children returned at least one diary. The mean number of diaries returned per child in the cohort was 6.84. The overall diary response rate for cohort participants was 28.5%.

Trial participants were significant more likely to respond than cohort participants [relative risk (RR) 1.24; 95% confidence interval (CI) 1.16 to 1.81]. There was no evidence that response rates differed between types of management (surgical versus medical: RR 0.97; 95% CI 0.76 to 1.24).

In Figure 2, diaries are numbered sequentially by month from randomisation (1–24). The figure clearly shows that response rates declined over the 24-monthly follow-up period for both trial and cohort participants. For trial participants only, adding responses from telephone interviews that corresponded to a missing diary provided an average of 1.6 additional monthly measurements. This equates to an overall response rate for the selected primary outcome variable of 47.8% for trial participants.

FIGURE 2.

Response rates by diary number for the trial and cohort overall.

Self-completion postal questionnaires

There was a poor response rate for both trial and cohort participants (Table 2). At 12 months, 47.8% of trial and 32.8% of cohort participants responded. There was a further decline by 24 months, with 44.0% of trial and 27.1% of cohort participants responding.

TABLE 2 - Participants’ response rates to 12- and 24-month questionnaires by study group

	Trial			Cohort
	Surgical management n (%)	Medical management n (%)	Total n (%)	Surgical management n (%)	Medical management n (%)	Total n (%)
Number of participants	131	137	268	387	74	461
Returned 12-month questionnaire	73 (58%)	55 (40%)	128 (48%)	124 (32%)	27 (36%)	151 (33%)
Returned 24-month questionnaire	64 (49%)	54 (39%)	118 (44%)	100 (26%)	25 (34%)	125 (27%)

Trial participants were much more likely to return their 12-month questionnaire than cohort participants [RR 1.46 (95% CI 1.22 to 1.75) in year 1 and RR 1.62 (95% CI 1.33 to 1.99) in year 2]. Among trial participants the difference in response rates between the two arms was statistically significant (p = 0.014) in year 1; children randomised to tonsillectomy were more likely to respond than other children (RR 1.39; 95% CI 1.08 to 1.79). The corresponding RR in year 2 was 1.24 (95% CI 0.94 to 1.63).

Primary outcome

The primary outcome was the number of episodes of sore throat experienced during 2 years of follow-up by each participating child. In the diary, the parent or child was asked to indicate the days on which the child had experienced a sore throat. Box 2 describes the algorithm for defining an episode of sore throat used in the following analysis.

Using the algorithm described in Box 2, Table 12 shows in each year of follow-up the mean number of episodes of sore throat per month for the four trial and cohort groups.

Secondary outcomes

Secondary analysis

All secondary analysis was ‘intention to treat’ and restricted to trial participants. The aim of secondary analysis was to determine whether we could identify groups of participants who benefited from surgical treatment. In the main analysis it was noted that the number of reported sore throats was fewer in year 2 than in year 1. It was also noted that there was a reduction in the proportion of diaries returned as time passed during the follow-up period (see Figure 2). It was decided that the secondary analysis should take these factors into account. This was done by setting the dependent variable to be the number of episodes of sore throat reported by the participant during the 2-year follow-up period, and including as a covariate the mean ‘diary number’ (diaries having been numbered sequentially from 1 to 24). This covariate proved to be highly significant and was retained, along with a general effect of surgical management, as the reference model with which the other models were compared. Fitting a negative binomial regression model, including the number of diaries returned as an exposure variable, yielded the following estimates:

• Effect of surgical management: IRR = 0.68 (95% CI 0.58 to 0.81).

• Effect of change of 1 in mean diary number: IRR = 0.90 (95% CI 0.88 to 0.92).

Potential adverse events of tonsillectomy and of treatment of sore throats using antibiotics

Respondents were asked to indicate whether particular symptoms were observed on each day in each diary. For each child the proportion of days on which each symptom was observed was calculated. In addition this was done separately for days on which a sore throat was reported and other days. In general other symptoms were more likely to be reported on days when the child was also suffering from sore throat (Table 23).

The overall proportion of days with each symptom is broken down by study group can be found in Table 24.

In general, children randomised to surgery reported fewer symptoms than children randomised to medical management. However, these children also reported considerably fewer symptoms than children who (or whose parents) expressed a preference for tonsillectomy.

Methods

The study design was qualitative. Data were generated through in-depth interviews with dyads of children aged 4–16 years and their parents. The interviews took place in the family home, all of which were based in the north-east of England. Data collection took place between July and August 2002. Interviews lasted between 30 minutes and 1.5 hours and their content was recorded using a digital audio recorder.

Findings

The findings from these interviews comprise a brief description of the participants along with a rough evaluation of the parent’s and child’s contribution to each interview. Data from the interviews are reported under the general themes of: physical and emotional effects of recurrent sore throat; impact of recurrent sore throat on education, social life and family; and management of this chronic condition. Anonymised quotations, from the interviews, are included in the text to illustrate points made.

Summary

This small qualitative study provides an understanding of the drivers behind parents seeking a surgical solution to their children’s condition. There are a number of caveats that should be made about these data. The study used a convenience sample; the selection of families was based on ease of availability and accessibility rather than using a purposive sample guided by theory. However, the sample broadly reflected the normal range of children seen in ENT outpatient clinics. However, it did not cover the whole range of ages for both boys and girls, with fewer younger girls than might have been expected from normal referral patterns. The interviews provided a rich description of the condition from the perspective of children and their parents and provided an insight into their treatment preferences. These insights were used in the development of the outcome questionnaires and in the construction of the scenarios in the utility study that is described in Chapter 5.

Interviewing dyads presents its own problems as they are jointly created accounts presenting neither the parent’s nor the child’s version of events. Certainly the percentage contribution of the children to the interviews was much lower than that of the parents. Both contributions may have been inhibited by the presence of others. The presence of parents is likely to affect the accounts given by children as they are tempered by the presence of adults. Similarly, parents are perhaps unlikely to express their deepest fears of the risks of surgery in front of young children. Although young people may have the cognitive skills to form opinions, the adult status of the researcher may cause problems in eliciting, collecting and interpreting their thoughts. In addition, it was parents who took the lead in volunteering and consenting to the study and it is difficult to establish how far this was in collaboration with the child.

Objectives

The aim of the utility study was to measure quality of life for health states associated with tonsillitis. The specific objectives were:

• To estimate the health-state utility associated with recurrent sore throat.

• To estimate the health-state utility associated with surgical management.

• To calculate the utility loss or gain associated with surgical management.

Eliciting utility values – the standard gamble method

The standard gamble method was used to elicit utility values for health states associated with recurrent sore throat and medical or surgical management. Standard gamble is a technique used to elicit individuals’ preferences.

To measure individuals’ preferences for a chronic health state, individuals are offered a choice between two options. Option 1 is some form of treatment that has two possible outcomes: a return to full health for the rest of their life or immediate death. The probability that the treatment will work and they will return to full health is p and the probability it won’t and they will die is (1 – p). Option 2 is a certain outcome of remaining in the chronic health state (state i) for the rest of their life. The individual is then asked to make a choice between options 1 and 2 as the probability p is varied. The probability p* at which the individual is indifferent between the two options is the utility value of health state i (if measured on a scale where perfect health is p = 1 and death is p = 0).

The scores that are obtained using the standard gamble method for each health state represent the directly derived utility values of those states. The utility value indicates the risk of death a person is willing to take in exchange for perfect health, i.e. a utility value of 0.6 indicates that an individual is willing to take up to a 60% risk of death in exchange for perfect health.

To facilitate the standard gamble exercise a visual aid known as a chance board was used. 46 This presents the probabilities associated with each of the uncertain and certain outcomes as a percentage risk of an event, which is generally more understandable to people.

Data collection

Participants were recruited from two of the NESSTAC trial sites: Newcastle and Glasgow. These participants were not in the NESSTAC trial and therefore were not assigned to either medical or surgical management. Interviews took place from March to July 2008.

In Newcastle, participants were recruited to the study through a tonsillectomy preoperative assessment clinic. Patients and their parents visit the paediatric ward for assessment prior to surgery. These clinics operate once a week. Each patient who attended the clinic between May and July 2008 was invited to take part in the study by the nurse conducting the preoperative assessment. If the parents agreed to take part in the study, the nurse introduced the parent to the researcher. If patients were over 12 years old, they were also asked if they would be willing to take part. The researcher outlined the patient information sheet to participants and, if they were still willing to take part, took their consent. The interview was then conducted.

As all patients attending the preoperative assessment clinic in Newcastle were by definition already committed to a tonsillectomy as their means of treatment, it was decided that to gain a wider range of patients whose sore throats were managed in other ways, another clinic should be used. In Glasgow, a children’s ENT outpatient clinic was used. Three special sore throat clinics were set up in March and April 2008. Each eligible patient attending these clinics was asked by his or her consultant to take part in the study. The eligibility criteria for the study were that the patient must have suffered with recurrent sore throat in the past year and must be able to complete an interview in English. If the patient agreed the consultant took consent from the parent or teenager and introduced them to the researcher for the interview to take place.

Three interviewers (CL, HM, Marie Poole) conducted the interviews over the 5-month period. Each interviewer was trained using the interviewer manual so as to remove any potential interview bias. Each parent or teenager who agreed to take part in the study was interviewed following his or her clinic appointment. The interviewer followed a set manual (see Appendix 8) so that the same wording was used for each participant. Participants were given further information on the study before moving onto the exercise where they first ranked the health states and then completed the standard gamble questions. If they had ranked Health State Z above X (the tonsillectomy state above the tonsillitis state) they were also asked to answer the WTP question as was outlined above. All participants were then asked to complete the demographic questions and the interview was concluded. Interview data were entered into an excel spreadsheet to aid analysis.

Results

Discussion

The sample size of 41 participants may be considered small. However, although a larger sample may have reduced the variance within the results, all of the 41 interviews followed a similar pattern, with parents unwilling to take even quite small risks for either health state, no matter which health state they had ranked first.

The utility values that were elicited are illustrative of the fact that the parents were unwilling to take risks against death, with all of the values being higher than 0.931, which can also be thought of as 93.1% of full health.

For the 28 parents who ranked Health State Z above Health State X, the utility values elicited from them were 0.965 and 0.931 respectively. These values can also be expressed as: Health State Z was valued as 96.5% of full health and Health State X valued at 93.1% of full health. Both of these values are high, indicating that this sample of parents did not believe that these health states have a large impact on quality of life. The gain in quality of life from Health State Z over Health State X is 0.034.

The remaining 13 parents ranked Health State X higher than Health State Z. This result was less expected as it had been assumed that parents would prefer for their child to have tonsillectomy. This was especially the case for those attending the Newcastle clinics, as these were preoperative assessment appointments on the paediatric ENT ward. There were eight parents from Newcastle who ranked the health states in this way. The main reasons given for preferring Health State X was that they did not like the side effects of Health State Z, especially the risk of bleeding and needing a blood transfusion. The health states were designed in conjunction with clinicians to accurately represent the potential side effects of a tonsillectomy and the potential outcomes that a child might experience following a tonsillectomy. It could also be the case that, as the health states were labelled only X and Z, the parents were unaware that Health State Z represented the tonsillectomy and Health State X presented the common symptoms of recurrent tonsillitis. The health states were purposely not labelled so as to avoid any bias from the participants actively seeking a particular type of treatment.

The utility values elicited from these 13 parents were 0.961 for Health State X and 0.938 for Health State Z, giving a difference of 0.023 between the two health states. Again these values show that these health states were rated highly and did not have a large impact on quality of life.

Just over half of the parents (53%) did not take any risk of death when asked to trade the worst health state against full health and death. This was expected following early piloting. Many of the parents commented that they would not take a risk of death to avoid the worse health state as it was not worth it if the child would grow out of the illness by the age of 18. In the interviews, it was emphasised that the scenarios were hypothetical and that death was not an expected outcome of their child’s treatment, but, as with all surgical treatments, there is a small risk of death (estimated at between 1 in 16,000 and 1 in 35,000 for tonsillectomy); however, none of the parents interviewed discussed this risk. This could indicate that they were unaware of the risk or that they considered it to be so small that it did not come into their decision-making when deciding on whether to go ahead with a procedure. This may highlight that the risks need to be more clearly explained to parents, especially when taking into account the non-fatal risks of treatment, which a number of parents seemed to be unaware of.

One of the features of the exercise was that the parent was told that the health states would last until the child reached 18 years. This may have influenced the way in which parents answered the questions, depending on the current age of their child. To see if this made a difference to the values, the data were split by the age categories 4–7, 8–11 and 12–15 years and reanalysed. The results are not presented here as on examination of the values there was no difference in the utility values between each of the age groups. However, there was some difference in the WTP values. Parents of the children aged between 4 and 7 years were willing to pay £10,000 (median) while parents of children in the 8- to 11-year age group were willing to pay £2000 and those in the 12- to 15-year group £3000.

The standard gamble method typically results in higher utility values than would be expected if they had been estimated using another method such as the visual analogue scale or the time trade-off. This is because, with the standard gamble method, to be able to place a health state on the 0–1 scale, at least one of the health states must be gambled against death. With a temporary, non-fatal health state, such as tonsillitis, many people would not take a risk of death to avoid the health state being valued.

If they were asked to rate the same health state using the visual analogue scale, they would likely give a lower valuation to a health state; however, this involves no sacrifice from the participant. In this situation the time trade-off is not appropriate as it involves sacrificing time in the future, which is not realistic in this situation given the young age of the patients and that they are expected to grow out of the illness by the time they reach adulthood. The use of a generic quality of life instrument such as the European Quality of Life-5 Dimensions was also rejected for this study as the five domains are not very applicable to tonsillitis and also the questionnaire would be completed by parents and it is difficult for them to accurately understand how tonsillitis affects their child’s quality of life.

There were a smaller number of teenagers who completed the study; however, the results indicate that there could be significant differences in the way in which patients view their quality of life with tonsillitis and the treatment options. The small sample size means that there is less confidence in the results but they do demonstrate that the patients view the quality of life with both tonsillitis and tonsillectomy to be worse than their parents do. The majority of the teenagers ranked Health State Z above X giving a utility score of 0.840 to Health State Z and a score of 0.776 to Health State X. Only one person was unwilling to take any risk of death, this could mean that as the person who suffers with recurrent tonsillitis they believe that this has a serious impact on their quality of life. It could also mean that the risk perceptions and hypothetical risk perceptions of younger people are different to older adults and they may be more risk seeking. Three teenagers ranked Health State X above Health State Z and attached very low utility scores to both health states (0.61 to X and 0.450 to Z). With only three participants it is not possible to draw firm conclusions on whether these results would remain this low if more participants had been recruited to the study.

The health-state utility values indicate that the two health states are not that different, and neither had a great impact on quality of life. However, the WTP results provide a different view suggesting that a treatment for tonsillitis is very important to the parents participating in this study. All parents who were asked the WTP question were willing to pay something. Some of the parents said that they would pay anything and more said that they would pay everything they could. The main reason given was that they could not put a price on their child’s health. These results are more in keeping with the qualitative study (see Chapter 4), where the main theme of the interviews was the parents’ requests or demands for tonsillectomy. This demand for tonsillectomy appears to be on the basis that the parents interviewed in the qualitative study used their own personal experience or the experience of others they knew that had undergone successful tonsillectomies. This is likely to explain the higher WTP values if the parents believed that the treatment would be successful.

One of the main weaknesses of this study was that it was conducted alongside the trial and therefore it was not possible to use the clinical effectiveness results from the trial in the health-state scenarios. The estimates of the numbers of sore throats that are presented in the health-state scenarios are based on the literature. Following the completion of the trial, the estimates included in the health-state scenarios do not correspond that closely with those found in the trial. Therefore, the QALY calculations reported here are for the health states presented and not the actual health gains experienced by those in the trial.

Economic evaluation

This chapter describes the economic evaluation based on trial participants only, which was conducted as an intention-to-treat cost-effectiveness analysis as described in the original protocol. The perspective for the collection of costs was the UK NHS. The number of episodes of sore throat avoided using the number of reported sore throats by trial participants during the 2-year follow-up period was the primary outcome used in the estimation of cost-effectiveness. A cost-effectiveness analysis was performed following methods outlined by Drummond et al. 63 Costs and outcomes for each of the trial participants were calculated and the mean incremental cost-effectiveness ratio (ICER) was estimated as:

As the follow-up period of the study was only 2 years, the costs and outcomes were not discounted. Data from the utility study (see Chapter 5) were used to calculate the incremental QALY gain.

Confidence intervals for the cost and outcome data were estimated using a non-parametric bootstrapping method,64 which accounted for any skewness in the data. 65

Costs

Outcomes

Cost-effectiveness

Target population

The true incidence of recurrent sore throat in children is difficult to estimate as it relies on the attitudes and behaviour of parents and children and GPs,1,11 which are likely to lead to significant variations for parents seeking treatment for their children from their GP in the referral of children with recurrent sore throat by GPs to ENT specialists and for rates of tonsillectomy. 14,70

Clinical guidelines for the treatment of recurrent sore throat suggest that tonsillectomy is indicated where there is typically a 2-year history of three to four episodes of moderate severity (5-day duration) per annum. 5–7 The impact of these guidelines on clinician behaviour, however, is unclear71 but they may not be uniformly implemented, and surgeons are more likely to perform tonsillectomies than not on children, whereas guidelines suggest watchful waiting or medical management. 5 Nevertheless, the inclusion and exclusion criteria for the present study were guided by the criteria for tonsillectomy in children indicated in these guidelines. The study therefore does not reflect the outcomes for all children currently undergoing tonsillectomy in the UK for recurrent sore throat.

Outcome of surgical or medical management

The key objective of surgical and medical management of recurrent sore throat is to reduce the frequency and severity of sore throats for children to a clinically significant extent. For the purposes of the study, we defined a priori the primary outcome as the reported number of episodes of sore throat in the 2 years after randomisation for trial participants and 2 years after recruitment for cohort participants. The source of these data was self-completed daily diaries returned by participants every 4 weeks for 24 months. In addition we collected information retrospectively about the reported experience of sore throats and other symptoms through telephone contact with participants who had not returned diaries and self-completed postal questionnaires at 3 months, 12 months and 24 months after randomisation (trial participants) or recruitment (cohort participants). A further source of information was abstracted from GP records: the recorded number of GP consultations for sore throat and prescribed medication used in the medical management of recurrent sore throats. The use of these different sources of information about sore throat experience for 24 months’ follow-up allowed some triangulation of the data.

Clinical effectiveness

Cost-effectiveness

Cost-effectiveness analysis based on intention to treat was performed on trial data using the approach outlined by Drummond et al. 63 Resources used by trial participants are reported in Chapter 6 (see Table 31). Prescription data were abstracted from GP records and data on contact with NHS services were collected through the outcome questionnaires. Estimates of NHS service use are therefore subject to the same caveats as the primary outcomes used for the clinical effectiveness analysis. The mean costs for trial participants of treatment for recurrent sore throats were calculated using resource data from participants and standard NHS unit costs. Table 32 reports that the cost of surgical management is significantly higher than that of medical management. The cost of surgery is the cost driver because when the cost of surgery is removed the difference in mean costs is substantially reduced. The estimated mean incremental cost for surgical management over medical management was £939.

For the purposes of the cost-effectiveness analysis, an estimate of the number of sore throats over the 2-year follow-up, adjusted for the reduction in diary response over time, was calculated (see Chapter 3). The estimated reduction in the mean number of sore throat episodes due to surgical management (the estimated mean incremental effectiveness) was estimated as 3.5 episodes (95% CI 1.8 to 5.2). Potentially this is an underestimate of the benefits of surgical management because trial participants reported fewer sore throat symptoms in the 6 months before enrolment to the trial than cohort participants who opted for surgical management. The estimated ICER was therefore estimated as £261 per sore throat avoided (95% CI £161 to £586). This estimate is certainly within the range identified in the WTP study of the amount that parents would be willing to pay for the successful treatment of their child’s recurrent sore throat (mean WTP £8059) (see Chapter 5).

Conclusions

Implications for practice

• There are clinical benefits of tonsillectomy that persist for at least 2 years.

• Participants were more likely to express a preference for tonsillectomy if they had experienced more severe symptoms of sore throat.

• There is a strong parental preference for tonsillectomy.

• Careful use of ‘watchful waiting’ and medical management in both primary and secondary care is recommended until clear-cut evidence of effectiveness is available.

Recommendations for research

• Exploratory secondary analysis to estimate the impact at surgical management on study participants whose tonsils were surgically removed.

• Methodological research of alternative methods of data collection.

• Larger utility elicitation/WTP studies.

Contribution of authors

Publication

Bond J, Wilson J, Eccles M, Vanoli A, Steen N, Clarke R, et al. Protocol for north of England and Scotland study of tonsillectomy and adeno-tonsillectomy in children (NESSTAC). BMC Ear Nose Throat Disord 2006;6:13.

Disclaimers

The views expressed in this publication are those of the authors and not necessarily those of the HTA programme or the Department of Health.

Protocol for north of England and Scotland study of tonsillectomy and adeno-tonsillectomy in children (NESSTAC). A pragmatic randomised controlled trial comparing surgical intervention with conventional medical treatment in children with recurrent sore throats

John Bond,¹ Janet Wilson,^1,2 Martin Eccles,¹ Alessandra Vanoli,¹ Nick Steen,¹ Ray Clarke,³ Andrew Zarod,⁴ Catherine Lock,^1* Katie Brittain,¹ Chris Speed¹ and Nikki Rousseau¹

Addresses: ¹Centre for Health Services Research, Newcastle University, Newcastle upon Tyne, UK; ²ENT, Freeman Hospital, Newcastle upon Tyne, UK; ³ENT, Alder Hey Children’s Hospital, Liverpool, UK; ⁴ENT, Booth Hall Children’s Hospital, Manchester, UK.

Email: John Bond – john.bond@newcastle.ac.uk; Janet Wilson – janet.wilson@nuth.nhs.uk; Martin Eccles – martin.eccles@newcastle.ac.uk; Alessandra Vanoli – Alessandra_Vanoli@yahoo.it; Nick Steen – nick.steen@newcastle.ac.uk; Ray Clarke – rayclarke@aol.com; Andrew Zarod – apzarod@aol.com; Catherine Lock – c.a.lock@newcastle.ac.uk; Katie Brittain – katie.brittain@newcastle.ac.uk; Chris Speed – chris.speed@newcastle.ac.uk; Nikki Rousseau – n.s.rousseau@newcastle.ac.uk.

*Corresponding author

Published 9 August 2006 in BMC Ear Nose Throat Disord6:13; DOI: 10.1186/1472-6815-6-13. Available online at: www.biomedcentral.com/1472-6815/6/13.

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    By Richards RG, Sampson FC, Beard SM, Tappenden P.

11. Screening for gestational diabetes: a systematic review and economic evaluation.

    By Scott DA, Loveman E, McIntyre L, Waugh N.

12. The clinical effectiveness and cost-effectiveness of surgery for people with morbid obesity: a systematic review and economic evaluation.

    By Clegg AJ, Colquitt J, Sidhu MK, Royle P, Loveman E, Walker A.

13. The clinical effectiveness of trastuzumab for breast cancer: a systematic review.

    By Lewis R, Bagnall A-M, Forbes C, Shirran E, Duffy S, Kleijnen J, et al.

14. The clinical effectiveness and cost-effectiveness of vinorelbine for breast cancer: a systematic review and economic evaluation.

    By Lewis R, Bagnall A-M, King S, Woolacott N, Forbes C, Shirran L, et al.

15. A systematic review of the effectiveness and cost-effectiveness of metal-on-metal hip resurfacing arthroplasty for treatment of hip disease.

    By Vale L, Wyness L, McCormack K, McKenzie L, Brazzelli M, Stearns SC.

16. The clinical effectiveness and cost-effectiveness of bupropion and nicotine replacement therapy for smoking cessation: a systematic review and economic evaluation.

    By Woolacott NF, Jones L, Forbes CA, Mather LC, Sowden AJ, Song FJ, et al.

17. A systematic review of effectiveness and economic evaluation of new drug treatments for juvenile idiopathic arthritis: etanercept.

    By Cummins C, Connock M, Fry-Smith A, Burls A.

18. Clinical effectiveness and cost-effectiveness of growth hormone in children: a systematic review and economic evaluation.

    By Bryant J, Cave C, Mihaylova B, Chase D, McIntyre L, Gerard K, et al.

19. Clinical effectiveness and cost-effectiveness of growth hormone in adults in relation to impact on quality of life: a systematic review and economic evaluation.

    By Bryant J, Loveman E, Chase D, Mihaylova B, Cave C, Gerard K, et al.

20. Clinical medication review by a pharmacist of patients on repeat prescriptions in general practice: a randomised controlled trial.

    By Zermansky AG, Petty DR, Raynor DK, Lowe CJ, Freementle N, Vail A.

21. The effectiveness of infliximab and etanercept for the treatment of rheumatoid arthritis: a systematic review and economic evaluation.

    By Jobanputra P, Barton P, Bryan S, Burls A.

22. A systematic review and economic evaluation of computerised cognitive behaviour therapy for depression and anxiety.

    By Kaltenthaler E, Shackley P, Stevens K, Beverley C, Parry G, Chilcott J.

23. A systematic review and economic evaluation of pegylated liposomal doxorubicin hydrochloride for ovarian cancer.

    By Forbes C, Wilby J, Richardson G, Sculpher M, Mather L, Reimsma R.

24. A systematic review of the effectiveness of interventions based on a stages-of-change approach to promote individual behaviour change.

    By Riemsma RP, Pattenden J, Bridle C, Sowden AJ, Mather L, Watt IS, et al.

25. A systematic review update of the clinical effectiveness and cost-effectiveness of glycoprotein IIb/IIIa antagonists.

    By Robinson M, Ginnelly L, Sculpher M, Jones L, Riemsma R, Palmer S, et al.

26. A systematic review of the effectiveness, cost-effectiveness and barriers to implementation of thrombolytic and neuroprotective therapy for acute ischaemic stroke in the NHS.

    By Sandercock P, Berge E, Dennis M, Forbes J, Hand P, Kwan J, et al.

27. A randomised controlled crossover trial of nurse practitioner versus doctor-led outpatient care in a bronchiectasis clinic.

    By Caine N, Sharples LD, Hollingworth W, French J, Keogan M, Exley A, et al.

28. Clinical effectiveness and cost – consequences of selective serotonin reuptake inhibitors in the treatment of sex offenders.

    By Adi Y, Ashcroft D, Browne K, Beech A, Fry-Smith A, Hyde C.

29. Treatment of established osteoporosis: a systematic review and cost–utility analysis.

    By Kanis JA, Brazier JE, Stevenson M, Calvert NW, Lloyd Jones M.

30. Which anaesthetic agents are cost-effective in day surgery? Literature review, national survey of practice and randomised controlled trial.

    By Elliott RA Payne K, Moore JK, Davies LM, Harper NJN, St Leger AS, et al.

31. Screening for hepatitis C among injecting drug users and in genitourinary medicine clinics: systematic reviews of effectiveness, modelling study and national survey of current practice.

    By Stein K, Dalziel K, Walker A, McIntyre L, Jenkins B, Horne J, et al.

32. The measurement of satisfaction with healthcare: implications for practice from a systematic review of the literature.

    By Crow R, Gage H, Hampson S, Hart J, Kimber A, Storey L, et al.

33. The effectiveness and cost-effectiveness of imatinib in chronic myeloid leukaemia: a systematic review.

    By Garside R, Round A, Dalziel K, Stein K, Royle R.

34. A comparative study of hypertonic saline, daily and alternate-day rhDNase in children with cystic fibrosis.

    By Suri R, Wallis C, Bush A, Thompson S, Normand C, Flather M, et al.

35. A systematic review of the costs and effectiveness of different models of paediatric home care.

    By Parker G, Bhakta P, Lovett CA, Paisley S, Olsen R, Turner D, et al.

1. How important are comprehensive literature searches and the assessment of trial quality in systematic reviews? Empirical study.

   By Egger M, Jüni P, Bartlett C, Holenstein F, Sterne J.

2. Systematic review of the effectiveness and cost-effectiveness, and economic evaluation, of home versus hospital or satellite unit haemodialysis for people with end-stage renal failure.

   By Mowatt G, Vale L, Perez J, Wyness L, Fraser C, MacLeod A, et al.

3. Systematic review and economic evaluation of the effectiveness of infliximab for the treatment of Crohn’s disease.

   By Clark W, Raftery J, Barton P, Song F, Fry-Smith A, Burls A.

4. A review of the clinical effectiveness and cost-effectiveness of routine anti-D prophylaxis for pregnant women who are rhesus negative.

   By Chilcott J, Lloyd Jones M, Wight J, Forman K, Wray J, Beverley C, et al.

5. Systematic review and evaluation of the use of tumour markers in paediatric oncology: Ewing’s sarcoma and neuroblastoma.

   By Riley RD, Burchill SA, Abrams KR, Heney D, Lambert PC, Jones DR, et al.

6. The cost-effectiveness of screening for Helicobacter pylori to reduce mortality and morbidity from gastric cancer and peptic ulcer disease: a discrete-event simulation model.

   By Roderick P, Davies R, Raftery J, Crabbe D, Pearce R, Bhandari P, et al.

7. The clinical effectiveness and cost-effectiveness of routine dental checks: a systematic review and economic evaluation.

   By Davenport C, Elley K, Salas C, Taylor-Weetman CL, Fry-Smith A, Bryan S, et al.

8. A multicentre randomised controlled trial assessing the costs and benefits of using structured information and analysis of women’s preferences in the management of menorrhagia.

   By Kennedy ADM, Sculpher MJ, Coulter A, Dwyer N, Rees M, Horsley S, et al.

9. Clinical effectiveness and cost–utility of photodynamic therapy for wet age-related macular degeneration: a systematic review and economic evaluation.

   By Meads C, Salas C, Roberts T, Moore D, Fry-Smith A, Hyde C.

10. Evaluation of molecular tests for prenatal diagnosis of chromosome abnormalities.

    By Grimshaw GM, Szczepura A, Hultén M, MacDonald F, Nevin NC, Sutton F, et al.

11. First and second trimester antenatal screening for Down’s syndrome: the results of the Serum, Urine and Ultrasound Screening Study (SURUSS).

    By Wald NJ, Rodeck C, Hackshaw AK, Walters J, Chitty L, Mackinson AM.

12. The effectiveness and cost-effectiveness of ultrasound locating devices for central venous access: a systematic review and economic evaluation.

    By Calvert N, Hind D, McWilliams RG, Thomas SM, Beverley C, Davidson A.

13. A systematic review of atypical antipsychotics in schizophrenia.

    By Bagnall A-M, Jones L, Lewis R, Ginnelly L, Glanville J, Torgerson D, et al.

14. Prostate Testing for Cancer and Treatment (ProtecT) feasibility study.

    By Donovan J, Hamdy F, Neal D, Peters T, Oliver S, Brindle L, et al.

15. Early thrombolysis for the treatment of acute myocardial infarction: a systematic review and economic evaluation.

    By Boland A, Dundar Y, Bagust A, Haycox A, Hill R, Mujica Mota R, et al.

16. Screening for fragile X syndrome: a literature review and modelling.

    By Song FJ, Barton P, Sleightholme V, Yao GL, Fry-Smith A.

17. Systematic review of endoscopic sinus surgery for nasal polyps.

    By Dalziel K, Stein K, Round A, Garside R, Royle P.

18. Towards efficient guidelines: how to monitor guideline use in primary care.

    By Hutchinson A, McIntosh A, Cox S, Gilbert C.

19. Effectiveness and cost-effectiveness of acute hospital-based spinal cord injuries services: systematic review.

    By Bagnall A-M, Jones L, Richardson G, Duffy S, Riemsma R.

20. Prioritisation of health technology assessment. The PATHS model: methods and case studies.

    By Townsend J, Buxton M, Harper G.

21. Systematic review of the clinical effectiveness and cost-effectiveness of tension-free vaginal tape for treatment of urinary stress incontinence.

    By Cody J, Wyness L, Wallace S, Glazener C, Kilonzo M, Stearns S, et al.

22. The clinical and cost-effectiveness of patient education models for diabetes: a systematic review and economic evaluation.

    By Loveman E, Cave C, Green C, Royle P, Dunn N, Waugh N.

23. The role of modelling in prioritising and planning clinical trials.

    By Chilcott J, Brennan A, Booth A, Karnon J, Tappenden P.

24. Cost–benefit evaluation of routine influenza immunisation in people 65–74 years of age.

    By Allsup S, Gosney M, Haycox A, Regan M.

25. The clinical and cost-effectiveness of pulsatile machine perfusion versus cold storage of kidneys for transplantation retrieved from heart-beating and non-heart-beating donors.

    By Wight J, Chilcott J, Holmes M, Brewer N.

26. Can randomised trials rely on existing electronic data? A feasibility study to explore the value of routine data in health technology assessment.

    By Williams JG, Cheung WY, Cohen DR, Hutchings HA, Longo MF, Russell IT.

27. Evaluating non-randomised intervention studies.

    By Deeks JJ, Dinnes J, D’Amico R, Sowden AJ, Sakarovitch C, Song F, et al.

28. A randomised controlled trial to assess the impact of a package comprising a patient-orientated, evidence-based self- help guidebook and patient-centred consultations on disease management and satisfaction in inflammatory bowel disease.

    By Kennedy A, Nelson E, Reeves D, Richardson G, Roberts C, Robinson A, et al.

29. The effectiveness of diagnostic tests for the assessment of shoulder pain due to soft tissue disorders: a systematic review.

    By Dinnes J, Loveman E, McIntyre L, Waugh N.

30. The value of digital imaging in diabetic retinopathy.

    By Sharp PF, Olson J, Strachan F, Hipwell J, Ludbrook A, O’Donnell M, et al.

31. Lowering blood pressure to prevent myocardial infarction and stroke: a new preventive strategy.

    By Law M, Wald N, Morris J.

32. Clinical and cost-effectiveness of capecitabine and tegafur with uracil for the treatment of metastatic colorectal cancer: systematic review and economic evaluation.

    By Ward S, Kaltenthaler E, Cowan J, Brewer N.

33. Clinical and cost-effectiveness of new and emerging technologies for early localised prostate cancer: a systematic review.

    By Hummel S, Paisley S, Morgan A, Currie E, Brewer N.

34. Literature searching for clinical and cost-effectiveness studies used in health technology assessment reports carried out for the National Institute for Clinical Excellence appraisal system.

    By Royle P, Waugh N.

35. Systematic review and economic decision modelling for the prevention and treatment of influenza A and B.

    By Turner D, Wailoo A, Nicholson K, Cooper N, Sutton A, Abrams K.

36. A randomised controlled trial to evaluate the clinical and cost-effectiveness of Hickman line insertions in adult cancer patients by nurses.

    By Boland A, Haycox A, Bagust A, Fitzsimmons L.

37. Redesigning postnatal care: a randomised controlled trial of protocol-based midwifery-led care focused on individual women’s physical and psychological health needs.

    By MacArthur C, Winter HR, Bick DE, Lilford RJ, Lancashire RJ, Knowles H, et al.

38. Estimating implied rates of discount in healthcare decision-making.

    By West RR, McNabb R, Thompson AGH, Sheldon TA, Grimley Evans J.

39. Systematic review of isolation policies in the hospital management of methicillin-resistant Staphylococcus aureus: a review of the literature with epidemiological and economic modelling.

    By Cooper BS, Stone SP, Kibbler CC, Cookson BD, Roberts JA, Medley GF, et al.

40. Treatments for spasticity and pain in multiple sclerosis: a systematic review.

    By Beard S, Hunn A, Wight J.

41. The inclusion of reports of randomised trials published in languages other than English in systematic reviews.

    By Moher D, Pham B, Lawson ML, Klassen TP.

42. The impact of screening on future health-promoting behaviours and health beliefs: a systematic review.

    By Bankhead CR, Brett J, Bukach C, Webster P, Stewart-Brown S, Munafo M, et al.

1. What is the best imaging strategy for acute stroke?

   By Wardlaw JM, Keir SL, Seymour J, Lewis S, Sandercock PAG, Dennis MS, et al.

2. Systematic review and modelling of the investigation of acute and chronic chest pain presenting in primary care.

   By Mant J, McManus RJ, Oakes RAL, Delaney BC, Barton PM, Deeks JJ, et al.

3. The effectiveness and cost-effectiveness of microwave and thermal balloon endometrial ablation for heavy menstrual bleeding: a systematic review and economic modelling.

   By Garside R, Stein K, Wyatt K, Round A, Price A.

4. A systematic review of the role of bisphosphonates in metastatic disease.

   By Ross JR, Saunders Y, Edmonds PM, Patel S, Wonderling D, Normand C, et al.

5. Systematic review of the clinical effectiveness and cost-effectiveness of capecitabine (Xeloda^®) for locally advanced and/or metastatic breast cancer.

   By Jones L, Hawkins N, Westwood M, Wright K, Richardson G, Riemsma R.

6. Effectiveness and efficiency of guideline dissemination and implementation strategies.

   By Grimshaw JM, Thomas RE, MacLennan G, Fraser C, Ramsay CR, Vale L, et al.

7. Clinical effectiveness and costs of the Sugarbaker procedure for the treatment of pseudomyxoma peritonei.

   By Bryant J, Clegg AJ, Sidhu MK, Brodin H, Royle P, Davidson P.

8. Psychological treatment for insomnia in the regulation of long-term hypnotic drug use.

   By Morgan K, Dixon S, Mathers N, Thompson J, Tomeny M.

9. Improving the evaluation of therapeutic interventions in multiple sclerosis: development of a patient-based measure of outcome.

   By Hobart JC, Riazi A, Lamping DL, Fitzpatrick R, Thompson AJ.

10. A systematic review and economic evaluation of magnetic resonance cholangiopancreatography compared with diagnostic endoscopic retrograde cholangiopancreatography.

    By Kaltenthaler E, Bravo Vergel Y, Chilcott J, Thomas S, Blakeborough T, Walters SJ, et al.

11. The use of modelling to evaluate new drugs for patients with a chronic condition: the case of antibodies against tumour necrosis factor in rheumatoid arthritis.

    By Barton P, Jobanputra P, Wilson J, Bryan S, Burls A.

12. Clinical effectiveness and cost-effectiveness of neonatal screening for inborn errors of metabolism using tandem mass spectrometry: a systematic review.

    By Pandor A, Eastham J, Beverley C, Chilcott J, Paisley S.

13. Clinical effectiveness and cost-effectiveness of pioglitazone and rosiglitazone in the treatment of type 2 diabetes: a systematic review and economic evaluation.

    By Czoski-Murray C, Warren E, Chilcott J, Beverley C, Psyllaki MA, Cowan J.

14. Routine examination of the newborn: the EMREN study. Evaluation of an extension of the midwife role including a randomised controlled trial of appropriately trained midwives and paediatric senior house officers.

    By Townsend J, Wolke D, Hayes J, Davé S, Rogers C, Bloomfield L, et al.

15. Involving consumers in research and development agenda setting for the NHS: developing an evidence-based approach.

    By Oliver S, Clarke-Jones L, Rees R, Milne R, Buchanan P, Gabbay J, et al.

16. A multi-centre randomised controlled trial of minimally invasive direct coronary bypass grafting versus percutaneous transluminal coronary angioplasty with stenting for proximal stenosis of the left anterior descending coronary artery.

    By Reeves BC, Angelini GD, Bryan AJ, Taylor FC, Cripps T, Spyt TJ, et al.

17. Does early magnetic resonance imaging influence management or improve outcome in patients referred to secondary care with low back pain? A pragmatic randomised controlled trial.

    By Gilbert FJ, Grant AM, Gillan MGC, Vale L, Scott NW, Campbell MK, et al.

18. The clinical and cost-effectiveness of anakinra for the treatment of rheumatoid arthritis in adults: a systematic review and economic analysis.

    By Clark W, Jobanputra P, Barton P, Burls A.

19. A rapid and systematic review and economic evaluation of the clinical and cost-effectiveness of newer drugs for treatment of mania associated with bipolar affective disorder.

    By Bridle C, Palmer S, Bagnall A-M, Darba J, Duffy S, Sculpher M, et al.

20. Liquid-based cytology in cervical screening: an updated rapid and systematic review and economic analysis.

    By Karnon J, Peters J, Platt J, Chilcott J, McGoogan E, Brewer N.

21. Systematic review of the long-term effects and economic consequences of treatments for obesity and implications for health improvement.

    By Avenell A, Broom J, Brown TJ, Poobalan A, Aucott L, Stearns SC, et al.

22. Autoantibody testing in children with newly diagnosed type 1 diabetes mellitus.

    By Dretzke J, Cummins C, Sandercock J, Fry-Smith A, Barrett T, Burls A.

23. Clinical effectiveness and cost-effectiveness of prehospital intravenous fluids in trauma patients.

    By Dretzke J, Sandercock J, Bayliss S, Burls A.

24. Newer hypnotic drugs for the short-term management of insomnia: a systematic review and economic evaluation.

    By Dündar Y, Boland A, Strobl J, Dodd S, Haycox A, Bagust A, et al.

25. Development and validation of methods for assessing the quality of diagnostic accuracy studies.

    By Whiting P, Rutjes AWS, Dinnes J, Reitsma JB, Bossuyt PMM, Kleijnen J.

26. EVALUATE hysterectomy trial: a multicentre randomised trial comparing abdominal, vaginal and laparoscopic methods of hysterectomy.

    By Garry R, Fountain J, Brown J, Manca A, Mason S, Sculpher M, et al.

27. Methods for expected value of information analysis in complex health economic models: developments on the health economics of interferon-β and glatiramer acetate for multiple sclerosis.

    By Tappenden P, Chilcott JB, Eggington S, Oakley J, McCabe C.

28. Effectiveness and cost-effectiveness of imatinib for first-line treatment of chronic myeloid leukaemia in chronic phase: a systematic review and economic analysis.

    By Dalziel K, Round A, Stein K, Garside R, Price A.

29. VenUS I: a randomised controlled trial of two types of bandage for treating venous leg ulcers.

    By Iglesias C, Nelson EA, Cullum NA, Torgerson DJ, on behalf of the VenUS Team.

30. Systematic review of the effectiveness and cost-effectiveness, and economic evaluation, of myocardial perfusion scintigraphy for the diagnosis and management of angina and myocardial infarction.

    By Mowatt G, Vale L, Brazzelli M, Hernandez R, Murray A, Scott N, et al.

31. A pilot study on the use of decision theory and value of information analysis as part of the NHS Health Technology Assessment programme.

    By Claxton K, Ginnelly L, Sculpher M, Philips Z, Palmer S.

32. The Social Support and Family Health Study: a randomised controlled trial and economic evaluation of two alternative forms of postnatal support for mothers living in disadvantaged inner-city areas.

    By Wiggins M, Oakley A, Roberts I, Turner H, Rajan L, Austerberry H, et al.

33. Psychosocial aspects of genetic screening of pregnant women and newborns: a systematic review.

    By Green JM, Hewison J, Bekker HL, Bryant, Cuckle HS.

34. Evaluation of abnormal uterine bleeding: comparison of three outpatient procedures within cohorts defined by age and menopausal status.

    By Critchley HOD, Warner P, Lee AJ, Brechin S, Guise J, Graham B.

35. Coronary artery stents: a rapid systematic review and economic evaluation.

    By Hill R, Bagust A, Bakhai A, Dickson R, Dündar Y, Haycox A, et al.

36. Review of guidelines for good practice in decision-analytic modelling in health technology assessment.

    By Philips Z, Ginnelly L, Sculpher M, Claxton K, Golder S, Riemsma R, et al.

37. Rituximab (MabThera^®) for aggressive non-Hodgkin’s lymphoma: systematic review and economic evaluation.

    By Knight C, Hind D, Brewer N, Abbott V.

38. Clinical effectiveness and cost-effectiveness of clopidogrel and modified-release dipyridamole in the secondary prevention of occlusive vascular events: a systematic review and economic evaluation.

    By Jones L, Griffin S, Palmer S, Main C, Orton V, Sculpher M, et al.

39. Pegylated interferon α-2a and -2b in combination with ribavirin in the treatment of chronic hepatitis C: a systematic review and economic evaluation.

    By Shepherd J, Brodin H, Cave C, Waugh N, Price A, Gabbay J.

40. Clopidogrel used in combination with aspirin compared with aspirin alone in the treatment of non-ST-segment- elevation acute coronary syndromes: a systematic review and economic evaluation.

    By Main C, Palmer S, Griffin S, Jones L, Orton V, Sculpher M, et al.

41. Provision, uptake and cost of cardiac rehabilitation programmes: improving services to under-represented groups.

    By Beswick AD, Rees K, Griebsch I, Taylor FC, Burke M, West RR, et al.

42. Involving South Asian patients in clinical trials.

    By Hussain-Gambles M, Leese B, Atkin K, Brown J, Mason S, Tovey P.

43. Clinical and cost-effectiveness of continuous subcutaneous insulin infusion for diabetes.

    By Colquitt JL, Green C, Sidhu MK, Hartwell D, Waugh N.

44. Identification and assessment of ongoing trials in health technology assessment reviews.

    By Song FJ, Fry-Smith A, Davenport C, Bayliss S, Adi Y, Wilson JS, et al.

45. Systematic review and economic evaluation of a long-acting insulin analogue, insulin glargine

    By Warren E, Weatherley-Jones E, Chilcott J, Beverley C.

46. Supplementation of a home-based exercise programme with a class-based programme for people with osteoarthritis of the knees: a randomised controlled trial and health economic analysis.

    By McCarthy CJ, Mills PM, Pullen R, Richardson G, Hawkins N, Roberts CR, et al.

47. Clinical and cost-effectiveness of once-daily versus more frequent use of same potency topical corticosteroids for atopic eczema: a systematic review and economic evaluation.

    By Green C, Colquitt JL, Kirby J, Davidson P, Payne E.

48. Acupuncture of chronic headache disorders in primary care: randomised controlled trial and economic analysis.

    By Vickers AJ, Rees RW, Zollman CE, McCarney R, Smith CM, Ellis N, et al.

49. Generalisability in economic evaluation studies in healthcare: a review and case studies.

    By Sculpher MJ, Pang FS, Manca A, Drummond MF, Golder S, Urdahl H, et al.

50. Virtual outreach: a randomised controlled trial and economic evaluation of joint teleconferenced medical consultations.

    By Wallace P, Barber J, Clayton W, Currell R, Fleming K, Garner P, et al.

1. Randomised controlled multiple treatment comparison to provide a cost-effectiveness rationale for the selection of antimicrobial therapy in acne.

   By Ozolins M, Eady EA, Avery A, Cunliffe WJ, O’Neill C, Simpson NB, et al.

2. Do the findings of case series studies vary significantly according to methodological characteristics?

   By Dalziel K, Round A, Stein K, Garside R, Castelnuovo E, Payne L.

3. Improving the referral process for familial breast cancer genetic counselling: findings of three randomised controlled trials of two interventions.

   By Wilson BJ, Torrance N, Mollison J, Wordsworth S, Gray JR, Haites NE, et al.

4. Randomised evaluation of alternative electrosurgical modalities to treat bladder outflow obstruction in men with benign prostatic hyperplasia.

   By Fowler C, McAllister W, Plail R, Karim O, Yang Q.

5. A pragmatic randomised controlled trial of the cost-effectiveness of palliative therapies for patients with inoperable oesophageal cancer.

   By Shenfine J, McNamee P, Steen N, Bond J, Griffin SM.

6. Impact of computer-aided detection prompts on the sensitivity and specificity of screening mammography.

   By Taylor P, Champness J, Given- Wilson R, Johnston K, Potts H.

7. Issues in data monitoring and interim analysis of trials.

   By Grant AM, Altman DG, Babiker AB, Campbell MK, Clemens FJ, Darbyshire JH, et al.

8. Lay public’s understanding of equipoise and randomisation in randomised controlled trials.

   By Robinson EJ, Kerr CEP, Stevens AJ, Lilford RJ, Braunholtz DA, Edwards SJ, et al.

9. Clinical and cost-effectiveness of electroconvulsive therapy for depressive illness, schizophrenia, catatonia and mania: systematic reviews and economic modelling studies.

   By Greenhalgh J, Knight C, Hind D, Beverley C, Walters S.

10. Measurement of health-related quality of life for people with dementia: development of a new instrument (DEMQOL) and an evaluation of current methodology.

    By Smith SC, Lamping DL, Banerjee S, Harwood R, Foley B, Smith P, et al.

11. Clinical effectiveness and cost-effectiveness of drotrecogin alfa (activated) (Xigris^®) for the treatment of severe sepsis in adults: a systematic review and economic evaluation.

    By Green C, Dinnes J, Takeda A, Shepherd J, Hartwell D, Cave C, et al.

12. A methodological review of how heterogeneity has been examined in systematic reviews of diagnostic test accuracy.

    By Dinnes J, Deeks J, Kirby J, Roderick P.

13. Cervical screening programmes: can automation help? Evidence from systematic reviews, an economic analysis and a simulation modelling exercise applied to the UK.

    By Willis BH, Barton P, Pearmain P, Bryan S, Hyde C.

14. Laparoscopic surgery for inguinal hernia repair: systematic review of effectiveness and economic evaluation.

    By McCormack K, Wake B, Perez J, Fraser C, Cook J, McIntosh E, et al.

15. Clinical effectiveness, tolerability and cost-effectiveness of newer drugs for epilepsy in adults: a systematic review and economic evaluation.

    By Wilby J, Kainth A, Hawkins N, Epstein D, McIntosh H, McDaid C, et al.

16. A randomised controlled trial to compare the cost-effectiveness of tricyclic antidepressants, selective serotonin reuptake inhibitors and lofepramine.

    By Peveler R, Kendrick T, Buxton M, Longworth L, Baldwin D, Moore M, et al.

17. Clinical effectiveness and cost-effectiveness of immediate angioplasty for acute myocardial infarction: systematic review and economic evaluation.

    By Hartwell D, Colquitt J, Loveman E, Clegg AJ, Brodin H, Waugh N, et al.

18. A randomised controlled comparison of alternative strategies in stroke care.

    By Kalra L, Evans A, Perez I, Knapp M, Swift C, Donaldson N.

19. The investigation and analysis of critical incidents and adverse events in healthcare.

    By Woloshynowych M, Rogers S, Taylor-Adams S, Vincent C.

20. Potential use of routine databases in health technology assessment.

    By Raftery J, Roderick P, Stevens A.

21. Clinical and cost-effectiveness of newer immunosuppressive regimens in renal transplantation: a systematic review and modelling study.

    By Woodroffe R, Yao GL, Meads C, Bayliss S, Ready A, Raftery J, et al.

22. A systematic review and economic evaluation of alendronate, etidronate, risedronate, raloxifene and teriparatide for the prevention and treatment of postmenopausal osteoporosis.

    By Stevenson M, Lloyd Jones M, De Nigris E, Brewer N, Davis S, Oakley J.

23. A systematic review to examine the impact of psycho-educational interventions on health outcomes and costs in adults and children with difficult asthma.

    By Smith JR, Mugford M, Holland R, Candy B, Noble MJ, Harrison BDW, et al.

24. An evaluation of the costs, effectiveness and quality of renal replacement therapy provision in renal satellite units in England and Wales.

    By Roderick P, Nicholson T, Armitage A, Mehta R, Mullee M, Gerard K, et al.

25. Imatinib for the treatment of patients with unresectable and/or metastatic gastrointestinal stromal tumours: systematic review and economic evaluation.

    By Wilson J, Connock M, Song F, Yao G, Fry-Smith A, Raftery J, et al.

26. Indirect comparisons of competing interventions.

    By Glenny AM, Altman DG, Song F, Sakarovitch C, Deeks JJ, D’Amico R, et al.

27. Cost-effectiveness of alternative strategies for the initial medical management of non-ST elevation acute coronary syndrome: systematic review and decision-analytical modelling.

    By Robinson M, Palmer S, Sculpher M, Philips Z, Ginnelly L, Bowens A, et al.

28. Outcomes of electrically stimulated gracilis neosphincter surgery.

    By Tillin T, Chambers M, Feldman R.

29. The effectiveness and cost-effectiveness of pimecrolimus and tacrolimus for atopic eczema: a systematic review and economic evaluation.

    By Garside R, Stein K, Castelnuovo E, Pitt M, Ashcroft D, Dimmock P, et al.

30. Systematic review on urine albumin testing for early detection of diabetic complications.

    By Newman DJ, Mattock MB, Dawnay ABS, Kerry S, McGuire A, Yaqoob M, et al.

31. Randomised controlled trial of the cost-effectiveness of water-based therapy for lower limb osteoarthritis.

    By Cochrane T, Davey RC, Matthes Edwards SM.

32. Longer term clinical and economic benefits of offering acupuncture care to patients with chronic low back pain.

    By Thomas KJ, MacPherson H, Ratcliffe J, Thorpe L, Brazier J, Campbell M, et al.

33. Cost-effectiveness and safety of epidural steroids in the management of sciatica.

    By Price C, Arden N, Coglan L, Rogers P.

34. The British Rheumatoid Outcome Study Group (BROSG) randomised controlled trial to compare the effectiveness and cost-effectiveness of aggressive versus symptomatic therapy in established rheumatoid arthritis.

    By Symmons D, Tricker K, Roberts C, Davies L, Dawes P, Scott DL.

35. Conceptual framework and systematic review of the effects of participants’ and professionals’ preferences in randomised controlled trials.

    By King M, Nazareth I, Lampe F, Bower P, Chandler M, Morou M, et al.

36. The clinical and cost-effectiveness of implantable cardioverter defibrillators: a systematic review.

    By Bryant J, Brodin H, Loveman E, Payne E, Clegg A.

37. A trial of problem-solving by community mental health nurses for anxiety, depression and life difficulties among general practice patients. The CPN-GP study.

    By Kendrick T, Simons L, Mynors-Wallis L, Gray A, Lathlean J, Pickering R, et al.

38. The causes and effects of socio-demographic exclusions from clinical trials.

    By Bartlett C, Doyal L, Ebrahim S, Davey P, Bachmann M, Egger M, et al.

39. Is hydrotherapy cost-effective? A randomised controlled trial of combined hydrotherapy programmes compared with physiotherapy land techniques in children with juvenile idiopathic arthritis.

    By Epps H, Ginnelly L, Utley M, Southwood T, Gallivan S, Sculpher M, et al.

40. A randomised controlled trial and cost-effectiveness study of systematic screening (targeted and total population screening) versus routine practice for the detection of atrial fibrillation in people aged 65 and over. The SAFE study.

    By Hobbs FDR, Fitzmaurice DA, Mant J, Murray E, Jowett S, Bryan S, et al.

41. Displaced intracapsular hip fractures in fit, older people: a randomised comparison of reduction and fixation, bipolar hemiarthroplasty and total hip arthroplasty.

    By Keating JF, Grant A, Masson M, Scott NW, Forbes JF.

42. Long-term outcome of cognitive behaviour therapy clinical trials in central Scotland.

    By Durham RC, Chambers JA, Power KG, Sharp DM, Macdonald RR, Major KA, et al.

43. The effectiveness and cost-effectiveness of dual-chamber pacemakers compared with single-chamber pacemakers for bradycardia due to atrioventricular block or sick sinus syndrome: systematic review and economic evaluation.

    By Castelnuovo E, Stein K, Pitt M, Garside R, Payne E.

44. Newborn screening for congenital heart defects: a systematic review and cost-effectiveness analysis.

    By Knowles R, Griebsch I, Dezateux C, Brown J, Bull C, Wren C.

45. The clinical and cost-effectiveness of left ventricular assist devices for end-stage heart failure: a systematic review and economic evaluation.

    By Clegg AJ, Scott DA, Loveman E, Colquitt J, Hutchinson J, Royle P, et al.

46. The effectiveness of the Heidelberg Retina Tomograph and laser diagnostic glaucoma scanning system (GDx) in detecting and monitoring glaucoma.

    By Kwartz AJ, Henson DB, Harper RA, Spencer AF, McLeod D.

47. Clinical and cost-effectiveness of autologous chondrocyte implantation for cartilage defects in knee joints: systematic review and economic evaluation.

    By Clar C, Cummins E, McIntyre L, Thomas S, Lamb J, Bain L, et al.

48. Systematic review of effectiveness of different treatments for childhood retinoblastoma.

    By McDaid C, Hartley S, Bagnall A-M, Ritchie G, Light K, Riemsma R.

49. Towards evidence-based guidelines for the prevention of venous thromboembolism: systematic reviews of mechanical methods, oral anticoagulation, dextran and regional anaesthesia as thromboprophylaxis.

    By Roderick P, Ferris G, Wilson K, Halls H, Jackson D, Collins R, et al.

50. The effectiveness and cost-effectiveness of parent training/education programmes for the treatment of conduct disorder, including oppositional defiant disorder, in children.

    By Dretzke J, Frew E, Davenport C, Barlow J, Stewart-Brown S, Sandercock J, et al.

1. The clinical and cost-effectiveness of donepezil, rivastigmine, galantamine and memantine for Alzheimer’s disease.

   By Loveman E, Green C, Kirby J, Takeda A, Picot J, Payne E, et al.

2. FOOD: a multicentre randomised trial evaluating feeding policies in patients admitted to hospital with a recent stroke.

   By Dennis M, Lewis S, Cranswick G, Forbes J.

3. The clinical effectiveness and cost-effectiveness of computed tomography screening for lung cancer: systematic reviews.

   By Black C, Bagust A, Boland A, Walker S, McLeod C, De Verteuil R, et al.

4. A systematic review of the effectiveness and cost-effectiveness of neuroimaging assessments used to visualise the seizure focus in people with refractory epilepsy being considered for surgery.

   By Whiting P, Gupta R, Burch J, Mujica Mota RE, Wright K, Marson A, et al.

5. Comparison of conference abstracts and presentations with full-text articles in the health technology assessments of rapidly evolving technologies.

   By Dundar Y, Dodd S, Dickson R, Walley T, Haycox A, Williamson PR.

6. Systematic review and evaluation of methods of assessing urinary incontinence.

   By Martin JL, Williams KS, Abrams KR, Turner DA, Sutton AJ, Chapple C, et al.

7. The clinical effectiveness and cost-effectiveness of newer drugs for children with epilepsy. A systematic review.

   By Connock M, Frew E, Evans B-W, Bryan S, Cummins C, Fry-Smith A, et al.

8. Surveillance of Barrett’s oesophagus: exploring the uncertainty through systematic review, expert workshop and economic modelling.

   By Garside R, Pitt M, Somerville M, Stein K, Price A, Gilbert N.

9. Topotecan, pegylated liposomal doxorubicin hydrochloride and paclitaxel for second-line or subsequent treatment of advanced ovarian cancer: a systematic review and economic evaluation.

   By Main C, Bojke L, Griffin S, Norman G, Barbieri M, Mather L, et al.

10. Evaluation of molecular techniques in prediction and diagnosis of cytomegalovirus disease in immunocompromised patients.

    By Szczepura A, Westmoreland D, Vinogradova Y, Fox J, Clark M.

11. Screening for thrombophilia in high-risk situations: systematic review and cost-effectiveness analysis. The Thrombosis: Risk and Economic Assessment of Thrombophilia Screening (TREATS) study.

    By Wu O, Robertson L, Twaddle S, Lowe GDO, Clark P, Greaves M, et al.

12. A series of systematic reviews to inform a decision analysis for sampling and treating infected diabetic foot ulcers.

    By Nelson EA, O’Meara S, Craig D, Iglesias C, Golder S, Dalton J, et al.

13. Randomised clinical trial, observational study and assessment of cost-effectiveness of the treatment of varicose veins (REACTIV trial).

    By Michaels JA, Campbell WB, Brazier JE, MacIntyre JB, Palfreyman SJ, Ratcliffe J, et al.

14. The cost-effectiveness of screening for oral cancer in primary care.

    By Speight PM, Palmer S, Moles DR, Downer MC, Smith DH, Henriksson M, et al.

15. Measurement of the clinical and cost-effectiveness of non-invasive diagnostic testing strategies for deep vein thrombosis.

    By Goodacre S, Sampson F, Stevenson M, Wailoo A, Sutton A, Thomas S, et al.

16. Systematic review of the effectiveness and cost-effectiveness of HealOzone^® for the treatment of occlusal pit/fissure caries and root caries.

    By Brazzelli M, McKenzie L, Fielding S, Fraser C, Clarkson J, Kilonzo M, et al.

17. Randomised controlled trials of conventional antipsychotic versus new atypical drugs, and new atypical drugs versus clozapine, in people with schizophrenia responding poorly to, or intolerant of, current drug treatment.

    By Lewis SW, Davies L, Jones PB, Barnes TRE, Murray RM, Kerwin R, et al.

18. Diagnostic tests and algorithms used in the investigation of haematuria: systematic reviews and economic evaluation.

    By Rodgers M, Nixon J, Hempel S, Aho T, Kelly J, Neal D, et al.

19. Cognitive behavioural therapy in addition to antispasmodic therapy for irritable bowel syndrome in primary care: randomised controlled trial.

    By Kennedy TM, Chalder T, McCrone P, Darnley S, Knapp M, Jones RH, et al.

20. A systematic review of the clinical effectiveness and cost-effectiveness of enzyme replacement therapies for Fabry’s disease and mucopolysaccharidosis type 1.

    By Connock M, Juarez-Garcia A, Frew E, Mans A, Dretzke J, Fry-Smith A, et al.

21. Health benefits of antiviral therapy for mild chronic hepatitis C: randomised controlled trial and economic evaluation.

    By Wright M, Grieve R, Roberts J, Main J, Thomas HC, on behalf of the UK Mild Hepatitis C Trial Investigators.

22. Pressure relieving support surfaces: a randomised evaluation.

    By Nixon J, Nelson EA, Cranny G, Iglesias CP, Hawkins K, Cullum NA, et al.

23. A systematic review and economic model of the effectiveness and cost-effectiveness of methylphenidate, dexamfetamine and atomoxetine for the treatment of attention deficit hyperactivity disorder in children and adolescents.

    By King S, Griffin S, Hodges Z, Weatherly H, Asseburg C, Richardson G, et al.

24. The clinical effectiveness and cost-effectiveness of enzyme replacement therapy for Gaucher’s disease: a systematic review.

    By Connock M, Burls A, Frew E, Fry-Smith A, Juarez-Garcia A, McCabe C, et al.

25. Effectiveness and cost-effectiveness of salicylic acid and cryotherapy for cutaneous warts. An economic decision model.

    By Thomas KS, Keogh-Brown MR, Chalmers JR, Fordham RJ, Holland RC, Armstrong SJ, et al.

26. A systematic literature review of the effectiveness of non-pharmacological interventions to prevent wandering in dementia and evaluation of the ethical implications and acceptability of their use.

    By Robinson L, Hutchings D, Corner L, Beyer F, Dickinson H, Vanoli A, et al.

27. A review of the evidence on the effects and costs of implantable cardioverter defibrillator therapy in different patient groups, and modelling of cost-effectiveness and cost–utility for these groups in a UK context.

    By Buxton M, Caine N, Chase D, Connelly D, Grace A, Jackson C, et al.

28. Adefovir dipivoxil and pegylated interferon alfa-2a for the treatment of chronic hepatitis B: a systematic review and economic evaluation.

    By Shepherd J, Jones J, Takeda A, Davidson P, Price A.

29. An evaluation of the clinical and cost-effectiveness of pulmonary artery catheters in patient management in intensive care: a systematic review and a randomised controlled trial.

    By Harvey S, Stevens K, Harrison D, Young D, Brampton W, McCabe C, et al.

30. Accurate, practical and cost-effective assessment of carotid stenosis in the UK.

    By Wardlaw JM, Chappell FM, Stevenson M, De Nigris E, Thomas S, Gillard J, et al.

31. Etanercept and infliximab for the treatment of psoriatic arthritis: a systematic review and economic evaluation.

    By Woolacott N, Bravo Vergel Y, Hawkins N, Kainth A, Khadjesari Z, Misso K, et al.

32. The cost-effectiveness of testing for hepatitis C in former injecting drug users.

    By Castelnuovo E, Thompson-Coon J, Pitt M, Cramp M, Siebert U, Price A, et al.

33. Computerised cognitive behaviour therapy for depression and anxiety update: a systematic review and economic evaluation.

    By Kaltenthaler E, Brazier J, De Nigris E, Tumur I, Ferriter M, Beverley C, et al.

34. Cost-effectiveness of using prognostic information to select women with breast cancer for adjuvant systemic therapy.

    By Williams C, Brunskill S, Altman D, Briggs A, Campbell H, Clarke M, et al.

35. Psychological therapies including dialectical behaviour therapy for borderline personality disorder: a systematic review and preliminary economic evaluation.

    By Brazier J, Tumur I, Holmes M, Ferriter M, Parry G, Dent-Brown K, et al.

36. Clinical effectiveness and cost-effectiveness of tests for the diagnosis and investigation of urinary tract infection in children: a systematic review and economic model.

    By Whiting P, Westwood M, Bojke L, Palmer S, Richardson G, Cooper J, et al.

37. Cognitive behavioural therapy in chronic fatigue syndrome: a randomised controlled trial of an outpatient group programme.

    By O’Dowd H, Gladwell P, Rogers CA, Hollinghurst S, Gregory A.

38. A comparison of the cost-effectiveness of five strategies for the prevention of nonsteroidal anti-inflammatory drug-induced gastrointestinal toxicity: a systematic review with economic modelling.

    By Brown TJ, Hooper L, Elliott RA, Payne K, Webb R, Roberts C, et al.

39. The effectiveness and cost-effectiveness of computed tomography screening for coronary artery disease: systematic review.

    By Waugh N, Black C, Walker S, McIntyre L, Cummins E, Hillis G.

40. What are the clinical outcome and cost-effectiveness of endoscopy undertaken by nurses when compared with doctors? A Multi-Institution Nurse Endoscopy Trial (MINuET).

    By Williams J, Russell I, Durai D, Cheung W-Y, Farrin A, Bloor K, et al.

41. The clinical and cost-effectiveness of oxaliplatin and capecitabine for the adjuvant treatment of colon cancer: systematic review and economic evaluation.

    By Pandor A, Eggington S, Paisley S, Tappenden P, Sutcliffe P.

42. A systematic review of the effectiveness of adalimumab, etanercept and infliximab for the treatment of rheumatoid arthritis in adults and an economic evaluation of their cost-effectiveness.

    By Chen Y-F, Jobanputra P, Barton P, Jowett S, Bryan S, Clark W, et al.

43. Telemedicine in dermatology: a randomised controlled trial.

    By Bowns IR, Collins K, Walters SJ, McDonagh AJG.

44. Cost-effectiveness of cell salvage and alternative methods of minimising perioperative allogeneic blood transfusion: a systematic review and economic model.

    By Davies L, Brown TJ, Haynes S, Payne K, Elliott RA, McCollum C.

45. Clinical effectiveness and cost-effectiveness of laparoscopic surgery for colorectal cancer: systematic reviews and economic evaluation.

    By Murray A, Lourenco T, de Verteuil R, Hernandez R, Fraser C, McKinley A, et al.

46. Etanercept and efalizumab for the treatment of psoriasis: a systematic review.

    By Woolacott N, Hawkins N, Mason A, Kainth A, Khadjesari Z, Bravo Vergel Y, et al.

47. Systematic reviews of clinical decision tools for acute abdominal pain.

    By Liu JLY, Wyatt JC, Deeks JJ, Clamp S, Keen J, Verde P, et al.

48. Evaluation of the ventricular assist device programme in the UK.

    By Sharples L, Buxton M, Caine N, Cafferty F, Demiris N, Dyer M, et al.

49. A systematic review and economic model of the clinical and cost-effectiveness of immunosuppressive therapy for renal transplantation in children.

    By Yao G, Albon E, Adi Y, Milford D, Bayliss S, Ready A, et al.

50. Amniocentesis results: investigation of anxiety. The ARIA trial.

    By Hewison J, Nixon J, Fountain J, Cocks K, Jones C, Mason G, et al.

1. Pemetrexed disodium for the treatment of malignant pleural mesothelioma: a systematic review and economic evaluation.

   By Dundar Y, Bagust A, Dickson R, Dodd S, Green J, Haycox A, et al.

2. A systematic review and economic model of the clinical effectiveness and cost-effectiveness of docetaxel in combination with prednisone or prednisolone for the treatment of hormone-refractory metastatic prostate cancer.

   By Collins R, Fenwick E, Trowman R, Perard R, Norman G, Light K, et al.

3. A systematic review of rapid diagnostic tests for the detection of tuberculosis infection.

   By Dinnes J, Deeks J, Kunst H, Gibson A, Cummins E, Waugh N, et al.

4. The clinical effectiveness and cost-effectiveness of strontium ranelate for the prevention of osteoporotic fragility fractures in postmenopausal women.

   By Stevenson M, Davis S, Lloyd-Jones M, Beverley C.

5. A systematic review of quantitative and qualitative research on the role and effectiveness of written information available to patients about individual medicines.

   By Raynor DK, Blenkinsopp A, Knapp P, Grime J, Nicolson DJ, Pollock K, et al.

6. Oral naltrexone as a treatment for relapse prevention in formerly opioid-dependent drug users: a systematic review and economic evaluation.

   By Adi Y, Juarez-Garcia A, Wang D, Jowett S, Frew E, Day E, et al.

7. Glucocorticoid-induced osteoporosis: a systematic review and cost–utility analysis.

   By Kanis JA, Stevenson M, McCloskey EV, Davis S, Lloyd-Jones M.

8. Epidemiological, social, diagnostic and economic evaluation of population screening for genital chlamydial infection.

   By Low N, McCarthy A, Macleod J, Salisbury C, Campbell R, Roberts TE, et al.

9. Methadone and buprenorphine for the management of opioid dependence: a systematic review and economic evaluation.

   By Connock M, Juarez-Garcia A, Jowett S, Frew E, Liu Z, Taylor RJ, et al.

10. Exercise Evaluation Randomised Trial (EXERT): a randomised trial comparing GP referral for leisure centre-based exercise, community-based walking and advice only.

    By Isaacs AJ, Critchley JA, See Tai S, Buckingham K, Westley D, Harridge SDR, et al.

11. Interferon alfa (pegylated and non-pegylated) and ribavirin for the treatment of mild chronic hepatitis C: a systematic review and economic evaluation.

    By Shepherd J, Jones J, Hartwell D, Davidson P, Price A, Waugh N.

12. Systematic review and economic evaluation of bevacizumab and cetuximab for the treatment of metastatic colorectal cancer.

    By Tappenden P, Jones R, Paisley S, Carroll C.

13. A systematic review and economic evaluation of epoetin alfa, epoetin beta and darbepoetin alfa in anaemia associated with cancer, especially that attributable to cancer treatment.

    By Wilson J, Yao GL, Raftery J, Bohlius J, Brunskill S, Sandercock J, et al.

14. A systematic review and economic evaluation of statins for the prevention of coronary events.

    By Ward S, Lloyd Jones M, Pandor A, Holmes M, Ara R, Ryan A, et al.

15. A systematic review of the effectiveness and cost-effectiveness of different models of community-based respite care for frail older people and their carers.

    By Mason A, Weatherly H, Spilsbury K, Arksey H, Golder S, Adamson J, et al.

16. Additional therapy for young children with spastic cerebral palsy: a randomised controlled trial.

    By Weindling AM, Cunningham CC, Glenn SM, Edwards RT, Reeves DJ.

17. Screening for type 2 diabetes: literature review and economic modelling.

    By Waugh N, Scotland G, McNamee P, Gillett M, Brennan A, Goyder E, et al.

18. The effectiveness and cost-effectiveness of cinacalcet for secondary hyperparathyroidism in end-stage renal disease patients on dialysis: a systematic review and economic evaluation.

    By Garside R, Pitt M, Anderson R, Mealing S, Roome C, Snaith A, et al.

19. The clinical effectiveness and cost-effectiveness of gemcitabine for metastatic breast cancer: a systematic review and economic evaluation.

    By Takeda AL, Jones J, Loveman E, Tan SC, Clegg AJ.

20. A systematic review of duplex ultrasound, magnetic resonance angiography and computed tomography angiography for the diagnosis and assessment of symptomatic, lower limb peripheral arterial disease.

    By Collins R, Cranny G, Burch J, Aguiar-Ibáñez R, Craig D, Wright K, et al.

21. The clinical effectiveness and cost-effectiveness of treatments for children with idiopathic steroid-resistant nephrotic syndrome: a systematic review.

    By Colquitt JL, Kirby J, Green C, Cooper K, Trompeter RS.

22. A systematic review of the routine monitoring of growth in children of primary school age to identify growth-related conditions.

    By Fayter D, Nixon J, Hartley S, Rithalia A, Butler G, Rudolf M, et al.

23. Systematic review of the effectiveness of preventing and treating Staphylococcus aureus carriage in reducing peritoneal catheter-related infections.

    By McCormack K, Rabindranath K, Kilonzo M, Vale L, Fraser C, McIntyre L, et al.

24. The clinical effectiveness and cost of repetitive transcranial magnetic stimulation versus electroconvulsive therapy in severe depression: a multicentre pragmatic randomised controlled trial and economic analysis.

    By McLoughlin DM, Mogg A, Eranti S, Pluck G, Purvis R, Edwards D, et al.

25. A randomised controlled trial and economic evaluation of direct versus indirect and individual versus group modes of speech and language therapy for children with primary language impairment.

    By Boyle J, McCartney E, Forbes J, O’Hare A.

26. Hormonal therapies for early breast cancer: systematic review and economic evaluation.

    By Hind D, Ward S, De Nigris E, Simpson E, Carroll C, Wyld L.

27. Cardioprotection against the toxic effects of anthracyclines given to children with cancer: a systematic review.

    By Bryant J, Picot J, Levitt G, Sullivan I, Baxter L, Clegg A.

28. Adalimumab, etanercept and infliximab for the treatment of ankylosing spondylitis: a systematic review and economic evaluation.

    By McLeod C, Bagust A, Boland A, Dagenais P, Dickson R, Dundar Y, et al.

29. Prenatal screening and treatment strategies to prevent group B streptococcal and other bacterial infections in early infancy: cost-effectiveness and expected value of information analyses.

    By Colbourn T, Asseburg C, Bojke L, Philips Z, Claxton K, Ades AE, et al.

30. Clinical effectiveness and cost-effectiveness of bone morphogenetic proteins in the non-healing of fractures and spinal fusion: a systematic review.

    By Garrison KR, Donell S, Ryder J, Shemilt I, Mugford M, Harvey I, et al.

31. A randomised controlled trial of postoperative radiotherapy following breast-conserving surgery in a minimum-risk older population. The PRIME trial.

    By Prescott RJ, Kunkler IH, Williams LJ, King CC, Jack W, van der Pol M, et al.

32. Current practice, accuracy, effectiveness and cost-effectiveness of the school entry hearing screen.

    By Bamford J, Fortnum H, Bristow K, Smith J, Vamvakas G, Davies L, et al.

33. The clinical effectiveness and cost-effectiveness of inhaled insulin in diabetes mellitus: a systematic review and economic evaluation.

    By Black C, Cummins E, Royle P, Philip S, Waugh N.

34. Surveillance of cirrhosis for hepatocellular carcinoma: systematic review and economic analysis.

    By Thompson Coon J, Rogers G, Hewson P, Wright D, Anderson R, Cramp M, et al.

35. The Birmingham Rehabilitation Uptake Maximisation Study (BRUM). Homebased compared with hospital-based cardiac rehabilitation in a multi-ethnic population: cost-effectiveness and patient adherence.

    By Jolly K, Taylor R, Lip GYH, Greenfield S, Raftery J, Mant J, et al.

36. A systematic review of the clinical, public health and cost-effectiveness of rapid diagnostic tests for the detection and identification of bacterial intestinal pathogens in faeces and food.

    By Abubakar I, Irvine L, Aldus CF, Wyatt GM, Fordham R, Schelenz S, et al.

37. A randomised controlled trial examining the longer-term outcomes of standard versus new antiepileptic drugs. The SANAD trial.

    By Marson AG, Appleton R, Baker GA, Chadwick DW, Doughty J, Eaton B, et al.

38. Clinical effectiveness and cost-effectiveness of different models of managing long-term oral anti-coagulation therapy: a systematic review and economic modelling.

    By Connock M, Stevens C, Fry-Smith A, Jowett S, Fitzmaurice D, Moore D, et al.

39. A systematic review and economic model of the clinical effectiveness and cost-effectiveness of interventions for preventing relapse in people with bipolar disorder.

    By Soares-Weiser K, Bravo Vergel Y, Beynon S, Dunn G, Barbieri M, Duffy S, et al.

40. Taxanes for the adjuvant treatment of early breast cancer: systematic review and economic evaluation.

    By Ward S, Simpson E, Davis S, Hind D, Rees A, Wilkinson A.

41. The clinical effectiveness and cost-effectiveness of screening for open angle glaucoma: a systematic review and economic evaluation.

    By Burr JM, Mowatt G, Hernández R, Siddiqui MAR, Cook J, Lourenco T, et al.

42. Acceptability, benefit and costs of early screening for hearing disability: a study of potential screening tests and models.

    By Davis A, Smith P, Ferguson M, Stephens D, Gianopoulos I.

43. Contamination in trials of educational interventions.

    By Keogh-Brown MR, Bachmann MO, Shepstone L, Hewitt C, Howe A, Ramsay CR, et al.

44. Overview of the clinical effectiveness of positron emission tomography imaging in selected cancers.

    By Facey K, Bradbury I, Laking G, Payne E.

45. The effectiveness and cost-effectiveness of carmustine implants and temozolomide for the treatment of newly diagnosed high-grade glioma: a systematic review and economic evaluation.

    By Garside R, Pitt M, Anderson R, Rogers G, Dyer M, Mealing S, et al.

46. Drug-eluting stents: a systematic review and economic evaluation.

    By Hill RA, Boland A, Dickson R, Dündar Y, Haycox A, McLeod C, et al.

47. The clinical effectiveness and cost-effectiveness of cardiac resynchronisation (biventricular pacing) for heart failure: systematic review and economic model.

    By Fox M, Mealing S, Anderson R, Dean J, Stein K, Price A, et al.

48. Recruitment to randomised trials: strategies for trial enrolment and participation study. The STEPS study.

    By Campbell MK, Snowdon C, Francis D, Elbourne D, McDonald AM, Knight R, et al.

49. Cost-effectiveness of functional cardiac testing in the diagnosis and management of coronary artery disease: a randomised controlled trial. The CECaT trial.

    By Sharples L, Hughes V, Crean A, Dyer M, Buxton M, Goldsmith K, et al.

50. Evaluation of diagnostic tests when there is no gold standard. A review of methods.

    By Rutjes AWS, Reitsma JB, Coomarasamy A, Khan KS, Bossuyt PMM.

51. Systematic reviews of the clinical effectiveness and cost-effectiveness of proton pump inhibitors in acute upper gastrointestinal bleeding.

    By Leontiadis GI, Sreedharan A, Dorward S, Barton P, Delaney B, Howden CW, et al.

52. A review and critique of modelling in prioritising and designing screening programmes.

    By Karnon J, Goyder E, Tappenden P, McPhie S, Towers I, Brazier J, et al.

53. An assessment of the impact of the NHS Health Technology Assessment Programme.

    By Hanney S, Buxton M, Green C, Coulson D, Raftery J.

1. A systematic review and economic model of switching from nonglycopeptide to glycopeptide antibiotic prophylaxis for surgery.

   By Cranny G, Elliott R, Weatherly H, Chambers D, Hawkins N, Myers L, et al.

2. ‘Cut down to quit’ with nicotine replacement therapies in smoking cessation: a systematic review of effectiveness and economic analysis.

   By Wang D, Connock M, Barton P, Fry-Smith A, Aveyard P, Moore D.

3. A systematic review of the effectiveness of strategies for reducing fracture risk in children with juvenile idiopathic arthritis with additional data on long-term risk of fracture and cost of disease management.

   By Thornton J, Ashcroft D, O’Neill T, Elliott R, Adams J, Roberts C, et al.

4. Does befriending by trained lay workers improve psychological well-being and quality of life for carers of people with dementia, and at what cost? A randomised controlled trial.

   By Charlesworth G, Shepstone L, Wilson E, Thalanany M, Mugford M, Poland F.

5. A multi-centre retrospective cohort study comparing the efficacy, safety and cost-effectiveness of hysterectomy and uterine artery embolisation for the treatment of symptomatic uterine fibroids. The HOPEFUL study.

   By Hirst A, Dutton S, Wu O, Briggs A, Edwards C, Waldenmaier L, et al.

6. Methods of prediction and prevention of pre-eclampsia: systematic reviews of accuracy and effectiveness literature with economic modelling.

   By Meads CA, Cnossen JS, Meher S, Juarez-Garcia A, ter Riet G, Duley L, et al.

7. The use of economic evaluations in NHS decision-making: a review and empirical investigation.

   By Williams I, McIver S, Moore D, Bryan S.

8. Stapled haemorrhoidectomy (haemorrhoidopexy) for the treatment of haemorrhoids: a systematic review and economic evaluation.

   By Burch J, Epstein D, Baba-Akbari A, Weatherly H, Fox D, Golder S, et al.

9. The clinical effectiveness of diabetes education models for Type 2 diabetes: a systematic review.

   By Loveman E, Frampton GK, Clegg AJ.

10. Payment to healthcare professionals for patient recruitment to trials: systematic review and qualitative study.

    By Raftery J, Bryant J, Powell J, Kerr C, Hawker S.

11. Cyclooxygenase-2 selective non-steroidal anti-inflammatory drugs (etodolac, meloxicam, celecoxib, rofecoxib, etoricoxib, valdecoxib and lumiracoxib) for osteoarthritis and rheumatoid arthritis: a systematic review and economic evaluation.

    By Chen Y-F, Jobanputra P, Barton P, Bryan S, Fry-Smith A, Harris G, et al.

12. The clinical effectiveness and cost-effectiveness of central venous catheters treated with anti-infective agents in preventing bloodstream infections: a systematic review and economic evaluation.

    By Hockenhull JC, Dwan K, Boland A, Smith G, Bagust A, Dundar Y, et al.

13. Stepped treatment of older adults on laxatives. The STOOL trial.

    By Mihaylov S, Stark C, McColl E, Steen N, Vanoli A, Rubin G, et al.

14. A randomised controlled trial of cognitive behaviour therapy in adolescents with major depression treated by selective serotonin reuptake inhibitors. The ADAPT trial.

    By Goodyer IM, Dubicka B, Wilkinson P, Kelvin R, Roberts C, Byford S, et al.

15. The use of irinotecan, oxaliplatin and raltitrexed for the treatment of advanced colorectal cancer: systematic review and economic evaluation.

    By Hind D, Tappenden P, Tumur I, Eggington E, Sutcliffe P, Ryan A.

16. Ranibizumab and pegaptanib for the treatment of age-related macular degeneration: a systematic review and economic evaluation.

    By Colquitt JL, Jones J, Tan SC, Takeda A, Clegg AJ, Price A.

17. Systematic review of the clinical effectiveness and cost-effectiveness of 64-slice or higher computed tomography angiography as an alternative to invasive coronary angiography in the investigation of coronary artery disease.

    By Mowatt G, Cummins E, Waugh N, Walker S, Cook J, Jia X, et al.

18. Structural neuroimaging in psychosis: a systematic review and economic evaluation.

    By Albon E, Tsourapas A, Frew E, Davenport C, Oyebode F, Bayliss S, et al.

19. Systematic review and economic analysis of the comparative effectiveness of different inhaled corticosteroids and their usage with long-acting beta₂ agonists for the treatment of chronic asthma in adults and children aged 12 years and over.

    By Shepherd J, Rogers G, Anderson R, Main C, Thompson-Coon J, Hartwell D, et al.

20. Systematic review and economic analysis of the comparative effectiveness of different inhaled corticosteroids and their usage with long-acting beta₂ agonists for the treatment of chronic asthma in children under the age of 12 years.

    By Main C, Shepherd J, Anderson R, Rogers G, Thompson-Coon J, Liu Z, et al.

21. Ezetimibe for the treatment of hypercholesterolaemia: a systematic review and economic evaluation.

    By Ara R, Tumur I, Pandor A, Duenas A, Williams R, Wilkinson A, et al.

22. Topical or oral ibuprofen for chronic knee pain in older people. The TOIB study.

    By Underwood M, Ashby D, Carnes D, Castelnuovo E, Cross P, Harding G, et al.

23. A prospective randomised comparison of minor surgery in primary and secondary care. The MiSTIC trial.

    By George S, Pockney P, Primrose J, Smith H, Little P, Kinley H, et al.

24. A review and critical appraisal of measures of therapist–patient interactions in mental health settings.

    By Cahill J, Barkham M, Hardy G, Gilbody S, Richards D, Bower P, et al.

25. The clinical effectiveness and cost-effectiveness of screening programmes for amblyopia and strabismus in children up to the age of 4–5 years: a systematic review and economic evaluation.

    By Carlton J, Karnon J, Czoski-Murray C, Smith KJ, Marr J.

26. A systematic review of the clinical effectiveness and cost-effectiveness and economic modelling of minimal incision total hip replacement approaches in the management of arthritic disease of the hip.

    By de Verteuil R, Imamura M, Zhu S, Glazener C, Fraser C, Munro N, et al.

27. A preliminary model-based assessment of the cost–utility of a screening programme for early age-related macular degeneration.

    By Karnon J, Czoski-Murray C, Smith K, Brand C, Chakravarthy U, Davis S, et al.

28. Intravenous magnesium sulphate and sotalol for prevention of atrial fibrillation after coronary artery bypass surgery: a systematic review and economic evaluation.

    By Shepherd J, Jones J, Frampton GK, Tanajewski L, Turner D, Price A.

29. Absorbent products for urinary/faecal incontinence: a comparative evaluation of key product categories.

    By Fader M, Cottenden A, Getliffe K, Gage H, Clarke-O’Neill S, Jamieson K, et al.

30. A systematic review of repetitive functional task practice with modelling of resource use, costs and effectiveness.

    By French B, Leathley M, Sutton C, McAdam J, Thomas L, Forster A, et al.

31. The effectiveness and cost-effectivness of minimal access surgery amongst people with gastro-oesophageal reflux disease – a UK collaborative study. The reflux trial.

    By Grant A, Wileman S, Ramsay C, Bojke L, Epstein D, Sculpher M, et al.

32. Time to full publication of studies of anti-cancer medicines for breast cancer and the potential for publication bias: a short systematic review.

    By Takeda A, Loveman E, Harris P, Hartwell D, Welch K.

33. Performance of screening tests for child physical abuse in accident and emergency departments.

    By Woodman J, Pitt M, Wentz R, Taylor B, Hodes D, Gilbert RE.

34. Curative catheter ablation in atrial fibrillation and typical atrial flutter: systematic review and economic evaluation.

    By Rodgers M, McKenna C, Palmer S, Chambers D, Van Hout S, Golder S, et al.

35. Systematic review and economic modelling of effectiveness and cost utility of surgical treatments for men with benign prostatic enlargement.

    By Lourenco T, Armstrong N, N’Dow J, Nabi G, Deverill M, Pickard R, et al.

36. Immunoprophylaxis against respiratory syncytial virus (RSV) with palivizumab in children: a systematic review and economic evaluation.

    By Wang D, Cummins C, Bayliss S, Sandercock J, Burls A.

1. Deferasirox for the treatment of iron overload associated with regular blood transfusions (transfusional haemosiderosis) in patients suffering with chronic anaemia: a systematic review and economic evaluation.

   By McLeod C, Fleeman N, Kirkham J, Bagust A, Boland A, Chu P, et al.

2. Thrombophilia testing in people with venous thromboembolism: systematic review and cost-effectiveness analysis.

   By Simpson EL, Stevenson MD, Rawdin A, Papaioannou D.

3. Surgical procedures and non-surgical devices for the management of non-apnoeic snoring: a systematic review of clinical effects and associated treatment costs.

   By Main C, Liu Z, Welch K, Weiner G, Quentin Jones S, Stein K.

4. Continuous positive airway pressure devices for the treatment of obstructive sleep apnoea–hypopnoea syndrome: a systematic review and economic analysis.

   By McDaid C, Griffin S, Weatherly H, Durée K, van der Burgt M, van Hout S, Akers J, et al.

5. Use of classical and novel biomarkers as prognostic risk factors for localised prostate cancer: a systematic review.

   By Sutcliffe P, Hummel S, Simpson E, Young T, Rees A, Wilkinson A, et al.

6. The harmful health effects of recreational ecstasy: a systematic review of observational evidence.

   By Rogers G, Elston J, Garside R, Roome C, Taylor R, Younger P, et al.

7. Systematic review of the clinical effectiveness and cost-effectiveness of oesophageal Doppler monitoring in critically ill and high-risk surgical patients.

   By Mowatt G, Houston G, Hernández R, de Verteuil R, Fraser C, Cuthbertson B, et al.

8. The use of surrogate outcomes in model-based cost-effectiveness analyses: a survey of UK Health Technology Assessment reports.

   By Taylor RS, Elston J.

9. Controlling Hypertension and Hypotension Immediately Post Stroke (CHHIPS) – a randomised controlled trial.

   By Potter J, Mistri A, Brodie F, Chernova J, Wilson E, Jagger C, et al.

10. Routine antenatal anti-D prophylaxis for RhD-negative women: a systematic review and economic evaluation.

    By Pilgrim H, Lloyd-Jones M, Rees A.

11. Amantadine, oseltamivir and zanamivir for the prophylaxis of influenza (including a review of existing guidance no. 67): a systematic review and economic evaluation.

    By Tappenden P, Jackson R, Cooper K, Rees A, Simpson E, Read R, et al.

12. Improving the evaluation of therapeutic interventions in multiple sclerosis: the role of new psychometric methods.

    By Hobart J, Cano S.

13. Treatment of severe ankle sprain: a pragmatic randomised controlled trial comparing the clinical effectiveness and cost-effectiveness of three types of mechanical ankle support with tubular bandage. The CAST trial.

    By Cooke MW, Marsh JL, Clark M, Nakash R, Jarvis RM, Hutton JL, et al. , on behalf of the CAST trial group.

14. Non-occupational postexposure prophylaxis for HIV: a systematic review.

    By Bryant J, Baxter L, Hird S.

15. Blood glucose self-monitoring in type 2 diabetes: a randomised controlled trial.

    By Farmer AJ, Wade AN, French DP, Simon J, Yudkin P, Gray A, et al.

16. How far does screening women for domestic (partner) violence in different health-care settings meet criteria for a screening programme? Systematic reviews of nine UK National Screening Committee criteria.

    By Feder G, Ramsay J, Dunne D, Rose M, Arsene C, Norman R, et al.

17. Spinal cord stimulation for chronic pain of neuropathic or ischaemic origin: systematic review and economic evaluation.

    By Simpson, EL, Duenas A, Holmes MW, Papaioannou D, Chilcott J.

18. The role of magnetic resonance imaging in the identification of suspected acoustic neuroma: a systematic review of clinical and cost-effectiveness and natural history.

    By Fortnum H, O’Neill C, Taylor R, Lenthall R, Nikolopoulos T, Lightfoot G, et al.

19. Dipsticks and diagnostic algorithms in urinary tract infection: development and validation, randomised trial, economic analysis, observational cohort and qualitative study.

    By Little P, Turner S, Rumsby K, Warner G, Moore M, Lowes JA, et al.

20. Systematic review of respite care in the frail elderly.

    By Shaw C, McNamara R, Abrams K, Cannings-John R, Hood K, Longo M, et al.

21. Neuroleptics in the treatment of aggressive challenging behaviour for people with intellectual disabilities: a randomised controlled trial (NACHBID).

    By Tyrer P, Oliver-Africano P, Romeo R, Knapp M, Dickens S, Bouras N, et al.

22. Randomised controlled trial to determine the clinical effectiveness and cost-effectiveness of selective serotonin reuptake inhibitors plus supportive care, versus supportive care alone, for mild to moderate depression with somatic symptoms in primary care: the THREAD (THREshold for AntiDepressant response) study.

    By Kendrick T, Chatwin J, Dowrick C, Tylee A, Morriss R, Peveler R, et al.

23. Diagnostic strategies using DNA testing for hereditary haemochromatosis in at-risk populations: a systematic review and economic evaluation.

    By Bryant J, Cooper K, Picot J, Clegg A, Roderick P, Rosenberg W, et al.

24. Enhanced external counterpulsation for the treatment of stable angina and heart failure: a systematic review and economic analysis.

    By McKenna C, McDaid C, Suekarran S, Hawkins N, Claxton K, Light K, et al.

25. Development of a decision support tool for primary care management of patients with abnormal liver function tests without clinically apparent liver disease: a record-linkage population cohort study and decision analysis (ALFIE).

    By Donnan PT, McLernon D, Dillon JF, Ryder S, Roderick P, Sullivan F, et al.

26. A systematic review of presumed consent systems for deceased organ donation.

    By Rithalia A, McDaid C, Suekarran S, Norman G, Myers L, Sowden A.

27. Paracetamol and ibuprofen for the treatment of fever in children: the PITCH randomised controlled trial.

    By Hay AD, Redmond NM, Costelloe C, Montgomery AA, Fletcher M, Hollinghurst S, et al.

28. A randomised controlled trial to compare minimally invasive glucose monitoring devices with conventional monitoring in the management of insulin-treated diabetes mellitus (MITRE).

    By Newman SP, Cooke D, Casbard A, Walker S, Meredith S, Nunn A, et al.

29. Sensitivity analysis in economic evaluation: an audit of NICE current practice and a review of its use and value in decision-making.

    By Andronis L, Barton P, Bryan S.

30. Trastuzumab for the treatment of primary breast cancer in HER2-positive women: a single technology appraisal.

    By Ward S, Pilgrim H, Hind D.

31. Docetaxel for the adjuvant treatment of early node-positive breast cancer: a single technology appraisal.

    By Chilcott J, Lloyd Jones M, Wilkinson A.

32. The use of paclitaxel in the management of early stage breast cancer.

    By Griffin S, Dunn G, Palmer S, Macfarlane K, Brent S, Dyker A, et al.

33. Rituximab for the first-line treatment of stage III/IV follicular non-Hodgkin’s lymphoma.

    By Dundar Y, Bagust A, Hounsome J, McLeod C, Boland A, Davis H, et al.

34. Bortezomib for the treatment of multiple myeloma patients.

    By Green C, Bryant J, Takeda A, Cooper K, Clegg A, Smith A, et al.

35. Fludarabine phosphate for the firstline treatment of chronic lymphocytic leukaemia.

    By Walker S, Palmer S, Erhorn S, Brent S, Dyker A, Ferrie L, et al.

36. Erlotinib for the treatment of relapsed non-small cell lung cancer.

    By McLeod C, Bagust A, Boland A, Hockenhull J, Dundar Y, Proudlove C, et al.

37. Cetuximab plus radiotherapy for the treatment of locally advanced squamous cell carcinoma of the head and neck.

    By Griffin S, Walker S, Sculpher M, White S, Erhorn S, Brent S, et al.

38. Infliximab for the treatment of adults with psoriasis.

    By Loveman E, Turner D, Hartwell D, Cooper K, Clegg A

39. Psychological interventions for postnatal depression: cluster randomised trial and economic evaluation. The PoNDER trial.

    By Morrell CJ, Warner R, Slade P, Dixon S, Walters S, Paley G, et al.

40. The effect of different treatment durations of clopidogrel in patients with non-ST-segment elevation acute coronary syndromes: a systematic review and value of information analysis.

    By Rogowski R, Burch J, Palmer S, Craigs C, Golder S, Woolacott N.

41. Systematic review and individual patient data meta-analysis of diagnosis of heart failure, with modelling of implications of different diagnostic strategies in primary care.

    By Mant J, Doust J, Roalfe A, Barton P, Cowie MR, Glasziou P, et al.

42. A multicentre randomised controlled trial of the use of continuous positive airway pressure and non-invasive positive pressure ventilation in the early treatment of patients presenting to the emergency department with severe acute cardiogenic pulmonary oedema: the 3CPO trial.

    By Gray AJ, Goodacre S, Newby DE, Masson MA, Sampson F, Dixon S, et al. , on behalf of the 3CPO study investigators.

43. Early high-dose lipid-lowering therapy to avoid cardiac events: a systematic review and economic evaluation.

    By Ara R, Pandor A, Stevens J, Rees A, Rafia R.

44. Adefovir dipivoxil and pegylated interferon alpha for the treatment of chronic hepatitis B: an updated systematic review and economic evaluation.

    By Jones J, Shepherd J, Baxter L, Gospodarevskaya E, Hartwell D, Harris P, et al.

45. Methods to identify postnatal depression in primary care: an integrated evidence synthesis and value of information analysis.

    By Hewitt CE, Gilbody SM, Brealey S, Paulden M, Palmer S, Mann R, et al.

46. A double-blind randomised placebo-controlled trial of topical intranasal corticosteroids in 4- to 11-year-old children with persistent bilateral otitis media with effusion in primary care.

    By Williamson I, Benge S, Barton S, Petrou S, Letley L, Fasey N, et al.

47. The effectiveness and cost-effectiveness of methods of storing donated kidneys from deceased donors: a systematic review and economic model.

    By Bond M, Pitt M, Akoh J, Moxham T, Hoyle M, Anderson R.

48. Rehabilitation of older patients: day hospital compared with rehabilitation at home. A randomised controlled trial.

    By Parker SG, Oliver P, Pennington M, Bond J, Jagger C, Enderby PM, et al.

49. Breastfeeding promotion for infants in neonatal units: a systematic review and economic analysis.

    By Renfrew MJ, Craig D, Dyson L, McCormick F, Rice S, King SE, et al.

50. The clinical effectiveness and cost-effectiveness of bariatric (weight loss) surgery for obesity: a systematic review and economic evaluation.

    By Picot J, Jones J, Colquitt JL, Gospodarevskaya E, Loveman E, Baxter L, et al.

51. Rapid testing for group B streptococcus during labour: a test accuracy study with evaluation of acceptability and cost-effectiveness.

    By Daniels J, Gray J, Pattison H, Roberts T, Edwards E, Milner P, et al.

52. Screening to prevent spontaneous preterm birth: systematic reviews of accuracy and effectiveness literature with economic modelling.

    By Honest H, Forbes CA, Durée KH, Norman G, Duffy SB, Tsourapas A, et al.

53. The effectiveness and cost-effectiveness of cochlear implants for severe to profound deafness in children and adults: a systematic review and economic model.

    By Bond M, Mealing S, Anderson R, Elston J, Weiner G, Taylor RS, et al.

54. Gemcitabine for the treatment of metastatic breast cancer.

    By Jones J, Takeda A, Tan SC, Cooper K, Loveman E, Clegg A.

55. Varenicline in the management of smoking cessation: a single technology appraisal.

    By Hind D, Tappenden P, Peters J, Kenjegalieva K.

56. Alteplase for the treatment of acute ischaemic stroke: a single technology appraisal.

    By Lloyd Jones M, Holmes M.

57. Rituximab for the treatment of rheumatoid arthritis.

    By Bagust A, Boland A, Hockenhull J, Fleeman N, Greenhalgh J, Dundar Y, et al.

58. Omalizumab for the treatment of severe persistent allergic asthma.

    By Jones J, Shepherd J, Hartwell D, Harris P, Cooper K, Takeda A, et al.

59. Rituximab for the treatment of relapsed or refractory stage III or IV follicular non-Hodgkin’s lymphoma.

    By Boland A, Bagust A, Hockenhull J, Davis H, Chu P, Dickson R.

60. Adalimumab for the treatment of psoriasis.

    By Turner D, Picot J, Cooper K, Loveman E.

61. Dabigatran etexilate for the prevention of venous thromboembolism in patients undergoing elective hip and knee surgery: a single technology appraisal.

    By Holmes M, C Carroll C, Papaioannou D.

62. Romiplostim for the treatment of chronic immune or idiopathic thrombocytopenic purpura: a single technology appraisal.

    By Mowatt G, Boachie C, Crowther M, Fraser C, Hernández R, Jia X, et al.

63. Sunitinib for the treatment of gastrointestinal stromal tumours: a critique of the submission from Pfizer.

    By Bond M, Hoyle M, Moxham T, Napier M, Anderson R.

64. Vitamin K to prevent fractures in older women: systematic review and economic evaluation.

    By Stevenson M, Lloyd-Jones M, Papaioannou D.

65. The effects of biofeedback for the treatment of essential hypertension: a systematic review.

    By Greenhalgh J, Dickson R, Dundar Y.

66. A randomised controlled trial of the use of aciclovir and/or prednisolone for the early treatment of Bell’s palsy: the BELLS study.

    By Sullivan FM, Swan IRC, Donnan PT, Morrison JM, Smith BH, McKinstry B, et al.

67. Lapatinib for the treatment of HER2-overexpressing breast cancer.

    By Jones J, Takeda A, Picot J, von Keyserlingk C, Clegg A.

68. Infliximab for the treatment of ulcerative colitis.

    By Hyde C, Bryan S, Juarez-Garcia A, Andronis L, Fry-Smith A.

69. Rimonabant for the treatment of overweight and obese people.

    By Burch J, McKenna C, Palmer S, Norman G, Glanville J, Sculpher M, et al.

70. Telbivudine for the treatment of chronic hepatitis B infection.

    By Hartwell D, Jones J, Harris P, Cooper K.

71. Entecavir for the treatment of chronic hepatitis B infection.

    By Shepherd J, Gospodarevskaya E, Frampton G, Cooper, K.

72. Febuxostat for the treatment of hyperuricaemia in people with gout: a single technology appraisal.

    By Stevenson M, Pandor A.

73. Rivaroxaban for the prevention of venous thromboembolism: a single technology appraisal.

    By Stevenson M, Scope A, Holmes M, Rees A, Kaltenthaler E.

74. Cetuximab for the treatment of recurrent and/or metastatic squamous cell carcinoma of the head and neck.

    By Greenhalgh J, Bagust A, Boland A, Fleeman N, McLeod C, Dundar Y, et al.

75. Mifamurtide for the treatment of osteosarcoma: a single technology appraisal.

    By Pandor A, Fitzgerald P, Stevenson M, Papaioannou D.

76. Ustekinumab for the treatment of moderate to severe psoriasis.

    By Gospodarevskaya E, Picot J, Cooper K, Loveman E, Takeda A.

77. Endovascular stents for abdominal aortic aneurysms: a systematic review and economic model.

    By Chambers D, Epstein D, Walker S, Fayter D, Paton F, Wright K, et al.

78. Clinical and cost-effectiveness of epoprostenol, iloprost, bosentan, sitaxentan and sildenafil for pulmonary arterial hypertension within their licensed indications: a systematic review and economic evaluation.

    By Chen Y-F, Jowett S, Barton P, Malottki K, Hyde C, Gibbs JSR, et al.

79. Cessation of attention deficit hyperactivity disorder drugs in the young (CADDY) – a pharmacoepidemiological and qualitative study.

    By Wong ICK, Asherson P, Bilbow A, Clifford S, Coghill D, R DeSoysa R, et al.

80. ARTISTIC: a randomised trial of human papillomavirus (HPV) testing in primary cervical screening.

    By Kitchener HC, Almonte M, Gilham C, Dowie R, Stoykova B, Sargent A, et al.

81. The clinical effectiveness of glucosamine and chondroitin supplements in slowing or arresting progression of osteoarthritis of the knee: a systematic review and economic evaluation.

    By Black C, Clar C, Henderson R, MacEachern C, McNamee P, Quayyum Z, et al.

82. Randomised preference trial of medical versus surgical termination of pregnancy less than 14 weeks’ gestation (TOPS).

    By Robson SC, Kelly T, Howel D, Deverill M, Hewison J, Lie MLS, et al.

83. Randomised controlled trial of the use of three dressing preparations in the management of chronic ulceration of the foot in diabetes.

    By Jeffcoate WJ, Price PE, Phillips CJ, Game FL, Mudge E, Davies S, et al.

84. VenUS II: a randomised controlled trial of larval therapy in the management of leg ulcers.

    By Dumville JC, Worthy G, Soares MO, Bland JM, Cullum N, Dowson C, et al.

85. A prospective randomised controlled trial and economic modelling of antimicrobial silver dressings versus non-adherent control dressings for venous leg ulcers: the VULCAN trial

    By Michaels JA, Campbell WB, King BM, MacIntyre J, Palfreyman SJ, Shackley P, et al.

86. Communication of carrier status information following universal newborn screening for sickle cell disorders and cystic fibrosis: qualitative study of experience and practice.

    By Kai J, Ulph F, Cullinan T, Qureshi N.

87. Antiviral drugs for the treatment of influenza: a systematic review and economic evaluation.

    By Burch J, Paulden M, Conti S, Stock C, Corbett M, Welton NJ, et al.

88. Development of a toolkit and glossary to aid in the adaptation of health technology assessment (HTA) reports for use in different contexts.

    By Chase D, Rosten C, Turner S, Hicks N, Milne R.

89. Colour vision testing for diabetic retinopathy: a systematic review of diagnostic accuracy and economic evaluation.

    By Rodgers M, Hodges R, Hawkins J, Hollingworth W, Duffy S, McKibbin M, et al.

90. Systematic review of the effectiveness and cost-effectiveness of weight management schemes for the under fives: a short report.

    By Bond M, Wyatt K, Lloyd J, Welch K, Taylor R.

91. Are adverse effects incorporated in economic models? An initial review of current practice.

    By Craig D, McDaid C, Fonseca T, Stock C, Duffy S, Woolacott N.

1. Multicentre randomised controlled trial examining the cost-effectiveness of contrast-enhanced high field magnetic resonance imaging in women with primary breast cancer scheduled for wide local excision (COMICE).

   By Turnbull LW, Brown SR, Olivier C, Harvey I, Brown J, Drew P, et al.

2. Bevacizumab, sorafenib tosylate, sunitinib and temsirolimus for renal cell carcinoma: a systematic review and economic evaluation.

   By Thompson Coon J, Hoyle M, Green C, Liu Z, Welch K, Moxham T, et al.

3. The clinical effectiveness and cost-effectiveness of testing for cytochrome P450 polymorphisms in patients with schizophrenia treated with antipsychotics: a systematic review and economic evaluation.

   By Fleeman N, McLeod C, Bagust A, Beale S, Boland A, Dundar Y, et al.

4. Systematic review of the clinical effectiveness and cost-effectiveness of photodynamic diagnosis and urine biomarkers (FISH, ImmunoCyt, NMP22) and cytology for the detection and follow-up of bladder cancer.

   By Mowatt G, Zhu S, Kilonzo M, Boachie C, Fraser C, Griffiths TRL, et al.

5. Effectiveness and cost-effectiveness of arthroscopic lavage in the treatment of osteoarthritis of the knee: a mixed methods study of the feasibility of conducting a surgical placebo-controlled trial (the KORAL study).

   By Campbell MK, Skea ZC, Sutherland AG, Cuthbertson BH, Entwistle VA, McDonald AM, et al.

6. A randomised 2 × 2 trial of community versus hospital pulmonary rehabilitation for chronic obstructive pulmonary disease followed by telephone or conventional follow-up.

   By Waterhouse JC, Walters SJ, Oluboyede Y, Lawson RA.

7. The effectiveness and cost-effectiveness of behavioural interventions for the prevention of sexually transmitted infections in young people aged 13–19: a systematic review and economic evaluation.

   By Shepherd J, Kavanagh J, Picot J, Cooper K, Harden A, Barnett-Page E, et al.

8. Dissemination and publication of research findings: an updated review of related biases.

   By Song F, Parekh S, Hooper L, Loke YK, Ryder J, Sutton AJ, et al.

9. The effectiveness and cost-effectiveness of biomarkers for the prioritisation of patients awaiting coronary revascularisation: a systematic review and decision model.

   By Hemingway H, Henriksson M, Chen R, Damant J, Fitzpatrick N, Abrams K, et al.

10. Comparison of case note review methods for evaluating quality and safety in health care.

    By Hutchinson A, Coster JE, Cooper KL, McIntosh A, Walters SJ, Bath PA, et al.

11. Clinical effectiveness and cost-effectiveness of continuous subcutaneous insulin infusion for diabetes: systematic review and economic evaluation.

    By Cummins E, Royle P, Snaith A, Greene A, Robertson L, McIntyre L, et al.

12. Self-monitoring of blood glucose in type 2 diabetes: systematic review.

    By Clar C, Barnard K, Cummins E, Royle P, Waugh N.

Health Technology Assessment programme

1. Director, NIHR HTA programme, Professor of Clinical Pharmacology, University of Liverpool

2. Director, Medical Care Research Unit, University of Sheffield