Table 4 Cochrane risk of bias (RoB 2) tool for randomised controlled trials
Year | First Author | Study design | Random sequence generation (selection bias) | Blinding of participants and personnel (Performance bias) | Blinding of outcome assessment (Detection bias) | Incomplete outcome data (Attrition bias) | Selection reporting (Reporting Bias) | Other sources of bias | Overall risk of bias |
|---|---|---|---|---|---|---|---|---|---|
2011 | De Kok [15] | Prospective RCT | Some concerns | Some concerns | Some concerns | Low risk | Low risk | None | Some concerns |
2018 | Cannizzaro [20] | Prospective RCT | High risk | High risk | Some concerns | Low risk | Low risk | None | High risk |