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Research methods and reporting
Using Risk of Bias 2 to assess results from randomised controlled trials: guidance from Cochrane
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Authors

  • Ella Flemyng Cochrane Evidence Production and Methods Directorate, Cochrane, London, UK PubMed articlesGoogle scholar articles
  • Theresa Helen Moore Population Health Sciences, University of Bristol Medical School, Bristol, UK NIHR Applied Research Collaboration West at University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK PubMed articlesGoogle scholar articles
  • Isabelle Boutron Inserm, INRAE, Centre de Recherche Epidémiologie et StatistiqueS Université Paris Cité, Université Paris Cité and Université Sorbonne Paris Nord, Paris, France Centre d’Epidémiologie Clinique, AP-HP, Hôpital Hôtel Dieu, Paris, France PubMed articlesGoogle scholar articles
  • Julian PT Higgins Population Health Sciences, University of Bristol Medical School, Bristol, UK NIHR Applied Research Collaboration West at University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK PubMed articlesGoogle scholar articles
  • Asbjørn Hróbjartsson Centre for Evidence-Based Medicine Odense (CEBMO) and Cochrane Denmark, Department of Clinical Research, University of Southern Denmark, Odense, Denmark Open Patient Data Explorative Network (OPEN), Odense University Hospital, Odense, Denmark PubMed articlesGoogle scholar articles
  • Camilla Hansen Nejstgaard Centre for Evidence-Based Medicine Odense (CEBMO) and Cochrane Denmark, Department of Clinical Research, University of Southern Denmark, Odense, Denmark Open Patient Data Explorative Network (OPEN), Odense University Hospital, Odense, Denmark PubMed articlesGoogle scholar articles
  • Kerry Dwan Evidence Production and Methods Directorate, Cochrane, London, UK Centre for Reviews and Dissemination, University of York, York, UK PubMed articlesGoogle scholar articles
  1. Correspondence to Dr Kerry Dwan, Centre for Reviews and Dissemination, University of York, York, UK; Kerry.dwan{at}york.ac.uk
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Citation

Flemyng E, Moore TH, Boutron I, et al
Using Risk of Bias 2 to assess results from randomised controlled trials: guidance from Cochrane
BMJ Evidence-Based Medicine 2023;28:260-266.

Publication history

  • Accepted January 2, 2023
  • First published January 24, 2023.
Online issue publication 
July 21, 2023

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© Author(s) (or their employer(s)) 2023. No commercial re-use. See rights and permissions. Published by BMJ.