| Ref ID | 732 |
| First Author | R. Andrade |
| Journal | BRITISH JOURNAL OF SPORTS MEDICINE |
| Year Of Publishing | 2019 |
| URL | https://pubmed.ncbi.nlm.nih.gov/29021246/ |
| Keywords |
• Protocols • Publication bias • General medical • Currency |
| Problem(s) |
• Unpublished or "zombie" reviews (the file-drawer effect) |
| Article Type | Editorial |
| Article Subtype | Discussion piece |
| First Author Country | Portugal |
| Aim | To assess the number of "zombie reviews" or reviews registered in PROSPERO that have not been updated to reflect completion, current status or publication up to 2016. |
| Level of Investigation | Descriptive |
| Summary of Findings | Of the 18959 PROSPERO registrations included by the article authors in 2016, only 7% of systematic reviews registered in PROSPERO between 2011 and 2015 had their status updated to 'published'. The authors highlight that abandoned systematic reviews or those that have not been completed remain in PROSPERO indefinitely—as zombie titles—clogging up the registry |
| Number of systematic reviews included | 18959 |
| Number of eligible systematic reviews assessed | 18959 |
| Treatment impacted | No |
| Treatment impacted description | |
| Interpretation impacted | Not Applicable |
| Interpretation impacted description |