| Study characteristics |
| Methods |
See Yang 2015
|
| Participants |
|
| Interventions |
|
| Outcomes |
|
| Notes |
|
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Random sequence generation (selection bias) |
Unclear risk |
No detail given |
| Allocation concealment (selection bias) |
Unclear risk |
No detail given |
| Blinding of participants |
Unclear risk |
No detail given |
| Blinding of personnel |
High risk |
No detail given |
| Blinding of outcome assessment (detection bias)
All outcomes |
Unclear risk |
Mentions assessor was blinded, although unclear if blinding achieved |
| Incomplete outcome data (attrition bias)
All outcomes |
Low risk |
No dropout |
| Selective reporting (reporting bias) |
Low risk |
Although tables for 2 out of 3 outcomes are presented (the significant 2), unsure if this constitutes high bias |
| Other bias |
Low risk |
No evidence of this |
