Disagreements in risk of bias assessment for randomised controlled trials included in more than one Cochrane systematic reviews: a research on research study using cross-sectional design.

ABSTRACT:

Objectives

Assess the frequency and reasons for disagreements in risk of bias assessments for randomised controlled trials (RCTs) included in more than one Cochrane review.

Design

Research on research study, using cross-sectional design.

Data sources

2796 Cochrane reviews published between March 2011 and September 2014.

Data selection

RCTs included in more than one review.

Data extraction

Risk of bias assessment and support for judgement for five key risk of bias items.

Data synthesis

For each item, we compared risk of bias assessment made in each review and calculated proportion of agreement. Two reviewers independently analysed 50% of all disagreements by comparing support for each judgement with information from study report to evaluate whether

SUBMITTER: Bertizzolo L 

PROVIDER: S-EPMC6500379 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature