- Framework of problems / Rigorous
- Flawed risk of bias undertaken
- Risk of bias in Cochrane systematic reviews: assessments of risk related to attrition bias are highly inconsistent
| Ref ID | 75 |
| First Author | A. Babic |
| Journal | BMC MED RES METHODOL |
| Year Of Publishing | 2019 |
| URL | https://bmcmedresmethodol.biomedcentral.com/articles/10.1186/s12874-019-0717-9#citeas |
| Keywords |
• Risk of bias • General medical • Cochrane |
| Problem(s) |
• Flawed risk of bias undertaken • Weaknesses identified in some Cochrane reviews |
| Number of systematic reviews included | 718 |
| Summary of Findings | In Cochrane reviews, risk of bias assessments for blinding of participants and personnel were frequently not in line with Cochrane Handbook recommendations. From 718 included Cochrane reviews, 1,828 out of 6,918 judgments (26%) for performance bias were not in line with the Cochrane Handbook and were therefore considered inadequate. More accurate judgments were deemed possible to be made if the performance bias domain is by default split into two subdomains, for participants and personnel. |
| 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? | No |