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RoB 2.0 tool

A revised tool to assess risk of bias in randomized trials (RoB 2.0)


Welcome to the website for the RoB 2.0 tool. This is a draft version of the tool. We have developed versions for three different trial designs.

As an interim measure, you may cite the tool as: Higgins JPT, Sterne JAC, Savović J, Page MJ, Hróbjartsson A, Boutron I, Reeves B, Eldridge S. A revised tool for assessing risk of bias in randomized trials In: Chandler J, McKenzie J, Boutron I, Welch V (editors). Cochrane Methods. Cochrane Database of Systematic Reviews 2016, Issue 10 (Suppl 1). dx.doi.org/10.1002/14651858.CD201601.

This work was supported by the MRC Network of Hubs for Trials Methodology Research (MR/L004933/1- N61). Infrastructure support was provided by the Medical Research Council ConDuCT-II Hub (Collaboration and innovation for Difficult and Complex randomized controlled Trials In Invasive procedures – MR/K025643/1).

Individually randomized, parallel group trials

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Cluster randomized, parallel group trials

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Individually randomized, cross-over trials

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