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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 4.1 All trials | 5 | 821 | Odds Ratio (M‐H, Fixed, 95% CI) | 1.03 [0.39, 2.69] |
| 4.2 All trials (sensitivity analysis) | 4 | 664 | Odds Ratio (M‐H, Fixed, 95% CI) | 0.99 [0.35, 2.75] |
