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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 6.1 Sensitivity analysis: studies at low risk of bias | 3 | 1646 | Risk Difference (M‐H, Random, 95% CI) | ‐0.22 [‐0.27, ‐0.17] |
