Table 5 Risk of Bias summary for RCTs
Study | Random sequence generation | Allocation concealment | Blinding of participants and personnel | Blinding of outcome assessment | Incomplete outcome data | Selective reporting | Other Biases |
|---|---|---|---|---|---|---|---|
Didden et al. [29] | Low risk | Low risk | High risk | High risk | Low risk | Low risk | Unclear risk |
Persson et al. [28] | Low risk | Unclear risk | Low risk | High risk | High risk | Unclear risk | Unclear risk |
Verschuur et al. [27] | Low risk | Unclear risk | High risk | High risk | High risk | Unclear risk | Low risk |