Study | Sources/Potential sources of biasa | ||||||||
---|---|---|---|---|---|---|---|---|---|
 | Selection bias | Performance bias | Detection bias | Bias due to attrition | Reporting bias | Other bias | Summary of bias | Quality indexb | |
Random sequence generation | Allocation conceal-ment | Participants and personnel blinding | Blinding of outcome assessment | Incomplete data | Selective reporting | Â | Â | Â | |
Mutimura et al. 2008 | No | Yes | Yes | Yes | No | No | – | High | Low |
Farinatti et al. 2010 | No | Yes | No | Yes | No | No | Small sample | Low | High |
Galantino et al. 2005 | No | Yes | Yes | Yes | No | No | – | High | Low |