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Why we need observational studies to evaluate the effectiveness of health care
The view is widely held that experimental methods (randomised controlled trials) are the "gold standard" for evaluation and that observational methods (cohort and case control studies) have little orExpand
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Evidence based policy: proceed with care.
  • N. Black
  • Medicine
  • BMJ : British Medical Journal
  • 4 August 2001
# Evidence based policy: proceed with care {#article-title-2} The emergence of evidence based medicine in the early 1990s led to some clinicians challenging managers and policymakers to be equallyExpand
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Consensus Development Methods: A Review of Best Practice in Creating Clinical Guidelines
Background: Although there is debate about the appropriate place of guidelines in clinical practice, guidelines can be seen as one way of assisting clinicians in decision-making. Given the likelyExpand
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Impact of surgery for stress incontinence on morbidity: cohort study
Abstract Objectives: To describe the impact of surgery for stress incontinence on the severity of symptoms, other mental and physical symptoms, and overall health. To describe the incidence ofExpand
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What makes a good reviewer and a good review for a general medical journal?
CONTEXT Selecting peer reviewers who will provide high-quality reviews is a central task of editors of biomedical journals. OBJECTIVES To determine the characteristics of reviewers for a generalExpand
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Coronary revascularisation: why do rates vary geographically in the UK?
OBJECTIVE--To explain the reasons for geographical variation in the use of coronary revascularisation in the United Kingdom. DESIGN--This was a cross sectional ecological study. SETTING--NHS andExpand
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The effectiveness of surgery for stress incontinence in women: a systematic review.
OBJECTIVE To determine the methodological quality of studies evaluating surgery for stress incontinence, the effectiveness of different procedures and the frequency of complications associated withExpand
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Development of a symptom severity index and a symptom impact index for stress incontinence in women
Stress incontinence is a common problem among women, yet there is no adequately validated instrument for measuring women's views of its severity (disease‐specific health status). The only instrumentExpand
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A randomised controlled trial of surgery for glue ear.
OBJECTIVE--To assess the effect of five different surgical treatments for glue ear (secretory otitis media) on improvement in hearing and, assuming one or more treatments to be effective, to identifyExpand
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Is there overutilisation of cataract surgery in England?
Objectives: Following a 3.7-fold increase in the rate of cataract surgery in the UK between 1989 and 2004, concern has been raised as to whether this has been accompanied by an excessive decline inExpand
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