- Framework of problems / Comprehensive
- Insufficient literature searches
- Identification of additional trials in prospective trial registers for Cochrane systematic reviews
| Ref ID | 572 |
| First Author | W. A. van Enst |
| Journal | PLOS ONE |
| Year Of Publishing | 2012 |
| URL | https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0042812 |
| Keywords |
Cochrane Grey literature General medical Searching |
| Problem(s) |
Lack of supplementary searches beyond databases Insufficient literature searches |
| Number of systematic reviews included | 210 |
| Summary of Findings | Searching trial registries was the 3rd most common strategy for identification of unpublished studies, occurring in 38.1% of Cochrane reviews. In in 55% of the searches in prospective registers, redundant work was performed by searching a portal and a register that is already incorporated by the portal. |
| 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 |