Table 2.
Evaluation of bias of RCTs included in the systematic review.
| First | Random Sequence | Allocation | Blinding of Participants | Blinding of Outcome | Adequate Assessment | Selective Reporting | No Other |
|---|---|---|---|---|---|---|---|
| author | generation | concealment | and personnel | assessment | of incomplete outcome | avoided | bias |
| Madan | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Hsu | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Miwa | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Lim | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Cho | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Yamaji | Yes | Yes | No | No | Yes | Yes | Yes |
| Lee | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Sirinawasatien | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Xiao | Yes | Unclear | No | No | Yes | Yes | Yes |
Yes: Low risk of bias; No: High risk of bias; Unclear: Unclear risk of bias.