Table 2 Description of bias assessment
Trial(Author) | Random sequence generation | Allocation concealment | Blinding of participants and personnel | Blinding of outcome assessment | Adequate assessment of outcomes | Selective reporting avoided | No other bias |
|---|---|---|---|---|---|---|---|
1 LAN Jianqing | Yes | Unclear | Yes | Yes | Unclear | Yes | Yes |
2 TAN Nian | Yes | Unclear | Yes | Yes | Unclear | Yes | Unclear |
3 ZHANG Jianzhu | Unclear | Unclear | Yes | Yes | Unclear | Unclear | Unclear |
4 CHEN Yongjun | No | Unclear | Yes | Yes | Unclear | Unclear | Yes |
5 QIN Xufang | Unclear | Unclear | Yes | Yes | Unclear | Unclear | Yes |
6 LI Baojiang | Unclear | Unclear | Yes | Yes | Unclear | Unclear | Yes |
7 YAO Ke | Yes | Yes | Yes | Yes | Unclear | Yes | Yes |
8 IZZET Can | Unclear | Unclear | Yes | Yes | Unclear | Unclear | Yes |
9 JUN Wang | Unclear | Unclear | Yes | Yes | Unclear | Unclear | Yes |
10 KEN Hayashi | Yes | Yes | Yes | Yes | Yes | Unclear | Yes |
11 LIXIAO Luo | Yes | Yes | Yes | Yes | Yes | Unclear | Yes |