- Framework of problems / Rigourous
- Flawed risk of bias undertaken
- Adequacy of risk of bias assessment in surgical vs non-surgical trials in Cochrane reviews: a methodological study
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 |
Number of systematic reviews included | 729 |
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). |
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 |