Table 3 Methodologic quality assessment of included studies (RCT)
Study (year) | Random sequence generation (selection bias) | Allocation concealment (selection bias) | Blinding of participants and personnel (performance bias) | Blinding of outcome assessment (detection bias) | Incomplete outcome data (attrition bias) | Other bias |
|---|---|---|---|---|---|---|
Huang (2022) | Low risk | Low risk | Low risk | Unclear | Low risk | Low risk |
Xie (2015) | Low risk | Low risk | Low risk | Unclear | Low risk | Low risk |
Zhong (2021) | Low risk | Unclear | Unclear | Unclear | Low risk | Low risk |
Wu (2021) | Low risk | Unclear | Unclear | Unclear | Low risk | Low risk |