Table 4 Risk of Bias Classification
Risk of Bias | High Risk | Low Risk | Uncertain Risk |
|---|---|---|---|
Random sequence generation | Dongmei et al., 2011 [19] Jin et al., 2013 [20] Tsai et el., 2017 [21] | None | None |
Allocation concealment | Dongmei et al., 2011 [19] Jin et al., 2013 [20] Tsai et el., 2017 [21] | None | None |
Blinding of participants and professionals | Dongmei et al., 2011 [19] Jin et al., 2013 [20] Tsai et el., 2017 [21] | None | None |
Blinding of outcome evaluators | None | Dongmei et al., 2011 [19] Jin et al., 2013 [20] | Tsai et el., 2017 [21] |
Incomplete outcomes data | None | Dongmei et al., 2011 [19] Jin et al., 2013 [20] Tsai et el., 2017 [21] | None |
Selective outcome reporting | None | Dongmei et al., 2011 [19] Jin et al., 2013 [20] Tsai et el., 2017 [21] | None |