Increasing number of authors in Cochrane reviews

Ref ID 46
First Author S. Gülen
Journal JOURNAL OF EVIDENCE‐BASED MEDICINE
Year Of Publishing 2020
URL https://onlinelibrary.wiley.com/doi/10.1111/jebm.12371
Keywords Cochrane
Author
Transparency
General medical
Problem(s) Guest / gift / ghost authorship
Number of systematic reviews included 7447
Summary of Findings From 7447 Cochrane reviews from 1996 to 2018. Within each editorial group, the total number of authors either increased (26/55, 47%) or was unchanged (29/55, 53%). Based on the text in “Contributions of authors,” 59% (16/27) of the reviews with more than 15 authors had authors that did not fulfil the ICMJE authorship criteria. However, the text in “Contributions of authors” was often difficult to interpret.
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