Table 1 Risk of bias assessment according to the Cochrane collaboration’s risk of bias assessment tool
Study, Year (reference) | Random sequence generation | Allocation concealment | Blinding of participants and personnel | Blinding of outcome assessment | Incomplete outcome data | Selective reporting | Overall assessment of risk of bias |
|---|---|---|---|---|---|---|---|
Foroozanfard et al. | Unclear | Unclear | Unclear | Unclear | Low | Low | Unclear |
Tomova et al. | Low | Unclear | Unclear | Low | Low | Low | Unclear |
Sauerbrun-Cutler et al. | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear |
Nascimento et al. | Low | Unclear | Unclear | Unclear | Low | Low | Unclear |
Panidis et al. | Low | Unclear | Low | Low | Low | Unclear | Unclear |
Neagu et al. | Low | Low | Unclear | Low | Low | Low | Unclear |
Romualdi et al. | Unclear | Unclear | Unclear | Unclear | Low | Low | Unclear |
Piltonen et al. | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear |
Dursun et al. | Low | Low | Unclear | Low | Unclear | Low | Unclear |
Fleming et al. | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear |
Falbo et al. | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear |
Wiweko et al. | High | High | Unclear | Unclear | Unclear | Low | High |
Tagliaferri et al. | Low | Low | Unclear | Low | Low | Low | Unclear |
Chhabra et al. | Unclear | Unclear | Unclear | Unclear | Low | Low | Unclear |
Madsen et al. | Low | Unclear | Unclear | Unclear | Low | Low | Unclear |
Fabregues et al. | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear |