Table 2 A summary of risk of bias assessment using the Risk of Bias Assessment Tool for Non-randomized Studies (RoBANS).
References (publication year) | Selection | Performance | Detection | Attrition | Reporting | |
|---|---|---|---|---|---|---|
Selection of participants | Confounding variables | Measurement of exposure | Blinding of outcome assessments | Incomplete outcome data | Selective outcome reporting | |
Song et al.17 | Low | Low | Low | Low | Low | Unclear |
Gamaleldin et al.20 | Low | High | Low | Low | Unclear | Low |
Kim et al.21 | Low | Low | Low | Low | Low | Unclear |
Lichthardt et al. 22 | Low | High | Low | Low | Unclear | Low |
Geva et al.23 | Low | High | Low | Low | Low | Low |
Kuan et al.24 | Low | Low | Low | Low | Low | Low |
Lorenzon et al.25 | High | High | Low | Low | Low | Low |
Tay et al.26 | Low | High | Low | Low | Unclear | Low |
Maas et al.27 | High | Low | Low | Low | Low | Low |
Dossa et al.28 | Unclear | Low | Low | Low | Unclear | Low |
Polanco et al.29 | Unclear | Low | Low | Low | Low | Low |
Xu et al.30 | Unclear | Low | Low | Low | Unclear | Unclear |
Shahab et al.31 | Unclear | Low | Low | Low | Unclear | Low |
