What is ‘Responder analysis’ and what are the benefits and limitations of this approach? Read more in this blog from Giorgio Karam.
Randomized controlled trials (RCTs) can be subject to different kinds of bias. Read about different sources of bias in this blog and how much the magnitude of effect can be changed by the presence of bias.
In this blog, Giorgio Karam examines the evidence on antihypertensive drugs for primary prevention – when do we start treatment?
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This blog takes a detailed look at the issue of attrition bias (bias that can arise when participants drop out of a study). It also describes measures that can be taken by researchers to minimize this bias (including different types of statistical analyses).
Critical appraisal tools (CATs) are commonly used by students and researchers alike, as a way of judging a study’s quality. In this blog, Dennis Neuen addresses the need to appraise these tools and has also collated a list of 12 CATs from all over the world.
The nuts and bolts 20 minute tutorial from Tim.