Table 2 Quality assessment of the randomized controlled trials included in the meta-analysis based on the risk of bias tool recommended by the Cochrane Collaboration
Study | Random sequence generation | Allocation concealment | Blinding of participants and personnel | Blinding of outcome assessment | Incomplete outcome data | Selective reporting | Other bias |
|---|---|---|---|---|---|---|---|
Ottini et al. [17] | Low risk | Low risk | Low risk | Low risk | Low risk | Low risk | Low risk |
Torrens et al. [6] | Low risk | Low risk | Low risk | Low risk | Low risk | Low risk | Low risk |