Table 3. | Quality assessment of included studies |
Author |
Random sequence generation |
Allocation concealment |
Patient blinding |
Outcome blinding |
Incomplete outcome data addressed |
Selective reporting |
---|---|---|---|---|---|---|
Cosso et al. [34] | ? | + | ? | + | ? | + |
Gorla et al. [35] | + | + | ? | + | ? | + |
Xavier et al. [36] | + | + | ? | ? | ? | ? |
Pereira et al. [37] | + | + | ? | + | ? | + |
+ = low risk of bias; ÷ = high risk of bias; ? = unclear risk of bias. |