Studies | Randomized adequatelya | Allocation concealed | Patient blinded | Care provider blinded | Outcome assessor blinded | Acceptable drop-out rateb | ITT analysisc | Avoided selective reporting | Similar baseline | Similar or avoided cofactor | Patient compliance | Similar timing | Qualityd |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Huang et al | Yes | Yes | Unclear | Unclear | Unclear | Yes | Yes | Yes | Yes | Unclear | Yes | Yes | High |
Tang et al | Yes | Yes | Unclear | Unclear | Unclear | Yes | Yes | Yes | Yes | Unclear | Yes | Yes | High |
Fan et al | Yes | Yes | Unclear | Unclear | Unclear | Yes | Yes | Yes | Yes | Unclear | Yes | Yes | High |
Li et al | No | Unclear | Unclear | Unclear | Unclear | Yes | Yes | Yes | Yes | Unclear | Yes | Yes | Moderate |
Gu et al | Yes | Yes | Unclear | Unclear | Unclear | Yes | Yes | Yes | Yes | Unclear | Yes | Yes | High |
Ou et al | Unclear | Yes | Unclear | Unclear | Unclear | Yes | Yes | Yes | Yes | Unclear | Yes | Yes | Moderate |
Zheng et al | Yes | Yes | Unclear | Unclear | Unclear | Yes | Yes | Yes | Yes | Unclear | Yes | Yes | High |