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The risk of bias assessment of the RCTs.
| Randomization process (%) | Deviations from intended interventions (%) | Mising outcome data (%) | Measurement of the outcome (%) | Selection of the reported result (%) | Overall Bias (%) | |
|---|---|---|---|---|---|---|
| Low risk | 30.56 | 47.22 | 91.67 | 63.89 | 13.89 | 27.78 |
| Some concerns | 47.22 | 47.22 | 8.33 | 16.67 | 80.56 | 47.22 |
| High risk | 22.22 | 5.56 | - | 19.44 | 5.56 | 25.00 |
