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Background: There is emerging evidence that randomized trials are subject to biases. Flaws in the design of such trials can result in over- or underestimation of the treatment effect size. Aim: To examine the empirical evidence for bias, to quantify the extent of bias associated with methodology,...
The Effectiveness of Cognitive Behavioural Therapy for Secondary Prevention of Coronary Heart Disease: A Meta-AnalysisDownload
The effectiveness of secondary prevention (SP) for coronary heart disease (CHD) is well established. The poor integration of evidence into clinical practice remains problematic, in part due to the poor description of trials evaluating these programs. As a result, knowledge users remain unclear...
Background: N-of-1 trials are prospectively planned, multiple crossover evaluations, conducted in individual patients. Evidence shows that a range of designs and statistical methods have been applied to N-of-1 trials. This thesis helps to provide a comprehensive understanding about the...
From the trenches: a cross-sectional study applying the GRADE tool in systematic reviews of healthcare interventions.Download
Background GRADE was developed to address shortcomings of tools to rate the quality of a body of evidence. While much has been published about GRADE, there are few empirical and systematic evaluations. Objective To assess GRADE for systematic reviews (SRs) in terms of inter-rater agreement and...