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 risk-of-bias tool. We updated the tool to respond to developments in understanding how…
# RoB 2: a revised tool for assessing risk of bias in randomised trials
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## Bibliographic
- **DOI:** 10.1136/bmj.l4898
- **Year:** 2019
- **Citations:** 31151
- **Open Access:** Yes (bronze)
- **License:** —
- **Source:** https://www.bmj.com/content/bmj/366/bmj.l4898.full.pdf
## Authors
- Jonathan A C Sterne
- Jelena Savović
- Matthew J. Page
- Roy G. Elbers
- Natalie Blencowe
- Isabelle Boutron
- Christopher J Cates
- Hung‐Yuan Cheng
- Mark Corbett
- Sandra Eldridge
- Jonathan Emberson
- Miguel A. Hernán
- Sally Hopewell
- Asbjørn Hróbjartsson
- Daniela R. Junqueira
- Peter Jüni
- Jamie J Kirkham
- Toby J Lasserson
- Tianjing Li
- Alexandra McAleenan
- Barnaby C Reeves
- Sasha Shepperd
- Ian Shrier
- Lesley Stewart
- Kate Tilling
- Ian R. White
- Penny Whiting
- Julian P. T. Higgins
## 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.
## Keywords
Systematic review, Medicine, Randomized controlled trial, Publication bias, Clinical trial, MEDLINE, Computer science, Meta-analysis, Medical physics, Internal medicine
## Concepts
- Systematic review
- Medicine
- Randomized controlled trial
- Publication bias
- Clinical trial
- MEDLINE
- Computer science
- Meta-analysis
- Medical physics
- Internal medicine
- Law
- Political science
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*Metadata only — full text not imported unless Open Access license permits.*
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Tóm lược học thuật (đã diễn giải): 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.
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1. Assessment of risk of bias is regarded as an essential component of a systematic review on the effects of an intervention.
2. The most commonly used tool for randomised trials is the Cochrane risk-of-bias tool.
3. 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.
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