| Ref ID | 790 |
| First Author | O. Barcot |
| Journal | BMC MEDICAL RESEARCH METHODOLOGY |
| Year Of Publishing | 2020 |
| URL | https://link.springer.com/article/10.1186/s12874-020-01123-7 |
| Keywords |
• Cochrane • Surgery • Author • Risk of bias |
| 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 the adequacy of risk of bias assessments in surgical versus non-surgical RCTs included in Cochrane reviews published between July 2015 and June 2016 in the Cochrane Database of Systematic Reviews and to assess the most common differences in those risk of bias assessments. |
| Level of Investigation | Descriptive |
| Summary of Findings | From 729 included Cochrane reviews published between July 2015 and June 2016 in the Cochrane Database of Systematic Reviews. The prevalence of adequate risk of bias judgments for all analysed risk of bias domains was generally higher in surgical trials than in non-surgical trials. For two risk of bias domains assessing blinding, this difference between surgical and non-surgical trials was statistically significant (P < 0.001), for allocation concealment test power, was too low (P = 0.039, beta < 0.8), while the difference between two types of trials was not significant for risk of bias domain regarding randomization (P = 0.124). |
| Number of systematic reviews included | 729 |
| Number of eligible systematic reviews assessed | 729 |
| Treatment impacted | No |
| Treatment impacted description | |
| Interpretation impacted | Not Applicable |
| Interpretation impacted description |