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Methodological data from the clinical trials that were included in the review
| Criterion | Author, year | ||||
|---|---|---|---|---|---|
| San Celestino 2011 | Khalid 2011a | Romany 2010a | Dirican 2008 | Romany 2012a | |
| Explicit eligibility criteria | Yes | Yes | Yes | Yes | Yes |
| Sequence generation | Unclear | Unclear | Unclear | Unclear | Unclear |
| Allocation concealed | Unclear | Unclear | Unclear | Unclear | Unclear |
| Patient blinding | Unclear | Unclear | Unclear | No | Unclear |
| Outcome assessor blinding | Unclear | Unclear | Unclear | No | Unclear |
