| Ref ID | 344 |
| First Author | O. Barcot |
| Journal | JOURNAL OF CLINICAL EPIDEMIOLOGY |
| Year Of Publishing | 2019 |
| URL | https://www.jclinepi.com/article/S0895-4356(19)30275-6/fulltext |
| Keywords |
• General medical • Risk of bias • Cochrane |
| Problem(s) |
• Flawed risk of bias undertaken • Weaknesses identified in some Cochrane reviews |
| Article Type | Empirical |
| Article Subtype | Cross-sectional survey/Methodological systematic review |
| First Author Country | Croatia |
| Aim | To assess adequacy of judgments about risk of bias for blinding of participants and personnel (performance bias) in Cochrane systematic reviews of randomized controlled trials published in the Cochrane Library from July 2015 to June 2016. |
| Level of Investigation | Descriptive |
| Summary of Findings | Overall 26% of judgments for performance bias were not in line with the Cochrane Handbook and were therefore considered inadequate. In reviews where Cochrane authors have split the performance bias domain into two subdomains, based on blinded individuals, we found lower prevalence of inadequate risk of bias judgments, with 9% of judgments for blinding of participants, and 5.8% judgments for the blinding of personnel subdomain being judged inadequately. |
| Number of systematic reviews included | 718 |
| Number of eligible systematic reviews assessed | 955 |
| Treatment impacted | No |
| Treatment impacted description | |
| Interpretation impacted | Not Applicable |
| Interpretation impacted description |