- Framework of problems / Objective
- Unpublished or "zombie" reviews (the file-drawer effect)
- More systematic reviews were registered in PROSPERO each year, but few records’ status was up-to-date
| Ref ID | 609 |
| First Author | T. Rombey |
| Journal | JOURNAL OF CLINICAL EPIDEMIOLOGY |
| Year Of Publishing | 2020 |
| URL | https://www.sciencedirect.com/science/article/abs/pii/S089543561930650X |
| Keywords |
• Protocols • General medical • Currency |
| Problem(s) |
• Unpublished or "zombie" reviews (the file-drawer effect) |
| Number of systematic reviews included | 500 |
| Summary of Findings | For more than half of the analysed PROSPERO records (40/75; 53.3%), only one version existed, which means they have never been updated since their initial creation. 84.0% of the 75 analysed PROSPERO records were not up-to-date, and, although the SRs had already been published, 65.3% of the 75 analysed PROSPERO records were still listed as ‘‘ongoing.’’ |
| Did the article find that the problem(s) led to qualitative changes in interpretation of the results? | N/A |
| Are the methods of the article described in enough detail to replicate the study? | Yes |