Risk of bias in overviews of reviews: a scoping review of methodological guidance and four‐item checklist

Ref ID 640
First Author M. Ballard
Year Of Publishing 2017
URL https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/jrsm.1229?download=true
Keywords General medical
Overviews/Umbrella Reviews
Problem(s) Lack of guidance or consistency in systematic overview / umbrella / review of systematic reviews
Number of systematic reviews included 24
Summary of Findings Overviews can be misleading if they do not meet four conditions: when identified systematic reviews meet the following four conditions: (1) include primary trials that do not substantially overlap, (2) match overview scope, (3) are of high methodological quality, and (4) are up-to-date
Did the article find that the problem(s) led to qualitative changes in interpretation of the results? Not Applicable
Are the methods of the article described in enough detail to replicate the study? Yes