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RoB 2: a revised tool for assessing risk of bias in randomised trials

Assessment of risk of bias is regarded as an essential component of a systematic review on the effects of an intervention. The most commonly used tool for randomised trials is the Cochrane…

Jonathan A C Sterne, Jelena Savović, Matthew J. Page, Roy G. Elbers, Natalie Blencowe, Isabelle Boutron, Christopher J Cates, Hung‐Yuan Cheng

https://resea.org/10.1136/bmj.l4898

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Abstract

Assessment of risk of bias is regarded as an essential component of a systematic review on the effects of an intervention. The most commonly used tool for randomised trials is the Cochrane risk-of-bias tool. We updated the tool to respond to developments in understanding how bias arises in randomised trials, and to address user feedback on and limitations of the original tool.