Incorrect inclusion of individual studies and methodological flaws in systematic review and meta-analysis

Ref ID 1
First Author R. Aabenhus
Journal BRITISH JOURNAL OF GENERAL PRACTICE
Year Of Publishing 2014
URL http://bjgp.org/content/64/622/221.2.full.pdf+html
Keywords Error
General medical
Problem(s) Errors in study inclusion or omission of relevant studies
Inadequate analysis of heterogeneity
Errors in effect estimate calculations or data synthesis
Data extraction errors and double counting
Number of systematic reviews included 1
Summary of Findings The authors highlight concerns in the conduct of one systematic review published in the British Journal of General Practice over double counting; erroneous study inclusion; inadequate analysis of heterogeneity and error in statistical effect calculation
Did the article find that the problem(s) led to qualitative changes in interpretation of the results? No
Are the methods of the article described in enough detail to replicate the study?