Table 5 Summary of risk of bias assessment for randomized studies—The Cochrane’s Collaboration’s tool
Domain | Al-Hasani et al. [26] | McGorray et al. [28] | Tehranchi et al. [31] | Yussif et al. [42] | Varughese et al. [43] | El-Timamy et al. [32] |
|---|---|---|---|---|---|---|
Randomization process | High | Some concerns | Some concerns | Some concerns | Low | Low |
Deviations from intended interventions | Some concerns | Low | Low | Some concerns | Low | Low |
Missing outcome data | Low | Low | Some concerns | Low | Low | Low |
Measurement of the outcome | Some concerns | Low | Low | Unclear | Some concerns | Some concerns |
Selection of the reported result | Low | Low | Low | Low | Some concerns | Low |
overall | Some concerns | Low | Some concerns | Some concerns | Low | Low |