Common tool structures and approaches to risk of bias assessment: implications for systematic reviewers

Author:

Stone Jennifer C.1,Leonardi-Bee Jo2,Barker Timothy13,Sears Kim14,Klugar Miloslav56,Munn Zachary13,Aromataris Edoardo1

Affiliation:

1. JBI, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia

2. Centre for Evidence Based Healthcare, School of Medicine, University of Nottingham, Nottingham, UK

3. Health Evidence Synthesis, Recommendations and Impact (HESRI), School of Public Health, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia

4. Queen’s Collaboration for Health Care Quality, Queen’s University, Kingston, Ontario, Canada

5. Czech National Centre for Evidence-Based Healthcare and Knowledge Translation (Cochrane Czech Republic, Czech EBHC: JBI Centre of Excellence, Masaryk University GRADE Centre), Institute of Biostatistics and Analyses, Faculty of Medicine, Masaryk University, 625 00 Brno, Czech Republic

6. Institute of Health Information and Statistics of the Czech Republic, Prague, Czech Republic

Abstract

There are numerous tools available to assess the risk of bias in individual studies in a systematic review. These tools have different structures, including scales and checklists, which may or may not separate their items by domains. There are also various approaches and guides for the process, scoring, and interpretation of risk of bias assessments, such as value judgments, quality scores, and relative ranks. The objective of this commentary, which is part of the JBI Series on Risk of Bias, is to discuss some of the distinctions among different tool structures and approaches to risk of bias assessment and the implications of these approaches for systematic reviewers.

Publisher

Ovid Technologies (Wolters Kluwer Health)

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