| 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 |
• Transparency • Author • Cochrane • General medical |
| Problem(s) |
• Guest / gift / ghost authorship |
| Article Type | Empirical |
| Article Subtype | Cross-sectional survey/Methodological systematic review |
| First Author Country | Denmark |
| Aim | To assess authorship trends in Cochrane reviews from 1996 to 2018, and to examine if the authorship criteria from the International Committee of Medical Journal Editors (ICMJE) were met for Cochrane reviews with more than 15 authors based on the text in the section “Contributions of authors.” |
| Level of Investigation | Descriptive |
| 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. |
| Number of systematic reviews included | 7447 |
| Number of eligible systematic reviews assessed | 7905 |
| Treatment impacted | No |
| Treatment impacted description | |
| Interpretation impacted | Not Applicable |
| Interpretation impacted description |