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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Not symptom‐free | 1 | Risk Ratio (M‐H, Random, 95% CI) | Subtotals only | |
| 2 Mean difference symptom scores | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
| 3 Adverse events | 1 | Risk Ratio (M‐H, Random, 95% CI) | Subtotals only |
