Table 1 The literature quality and risk of bias assessment of controlled studies by Cochrane scale form.
Author (Year) | Adequate sequence generation | Allocation concealment | Blinding of participants and personnel | Blinding of outcome assessment | Incomplete outcome data addressed | Selective outcome reporting | Free from other bias | The estimated risk potential of bias |
|---|---|---|---|---|---|---|---|---|
Si M (2013) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Low |
Lai H (2010) | No | Yes | No | No | Yes | Yes | Yes | Moderate |
Nedir (2017) | Yes | Yes | No | No | Yes | Yes | Yes | Moderate |
