- Framework of problems / Rigourous
- Cochrane reviews more rigorous/higher quality than non-Cochrane reviews
- Assessing the magnitude of changes from protocol to publication-a survey on Cochrane and non-Cochrane Systematic Reviews
Ref ID | 932 |
First Author | M. Siebert |
Journal | PEERJ |
Year Of Publishing | 2023 |
URL | https://peerj.com/articles/16016/ |
Keywords |
Cochrane Protocols Transparency Non-Cochrane reviews |
Problem(s) |
Undocumented or unjustified deviations to the review protocol Cochrane reviews more rigorous/higher quality than non-Cochrane reviews |
Number of systematic reviews included | 194 |
Summary of Findings | From 194 included systematic reviews (97 Cochrane and 97 non-Cochrane systematic reviews) indexed in PubMed and Cochrane databases in 2018. More than half of each sub-sample, 54.6% of Cochrane systematic reviews and 67.0% of non-Cochrane systematic reviews had changes in PICOS elements (ARR 12.4% [−1.3%; 26.0%]). Most changes related to the primary outcome whatever the type of systematic review. Only 3/119 (4.2%) of changes in PICOS items were reported in non-Cochrane systematic reviews, compared to 62/108 (57.4%) to Cochrane systematic reviews (ARR 53.2% [43.2%; 63.2%]). |
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 |