Table 5.
Risk of bias in the selected intervention study using Cochrane Collaboration's tool.
| Author | Risk of selection bias |
Risk of performance bias |
Risk of attrition bias |
Risk of detection bias |
Risk of reporting bias |
Overall risk of bias | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Random sequence allocation | Allocation concealment | Baseline differences | Total | Blinding of participants | Blinding of personnel | Appropriate analysis | Total | Complete outcome data | Missing outcome data | Total | Inappropriate outcome assessment | Outcome assessment group differences | Blinding | Total | Analysis as pre-specified | Selection on multiple outcome measurements | Selection on multiple analyses | Total | ||
| Zhu | L | L | L | Low | L | L | L | Low | PH | PL | Some concerns | L | L | L | Low | NI | L | NI | Some concerns | Low to some concerns |
Note. H = high; L = low; NI = no information; PH = probably high; PL = probably low.