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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Exacerbations (oral corticosteroid) | 1 | Odds Ratio (IV, Random, 95% CI) | Totals not selected | |
| 2 Asthma Quality of Life Questionnaire (AQLQ) total | 3 | 1745 | Mean Difference (IV, Random, 95% CI) | ‐0.11 [‐0.19, ‐0.03] |
| 3 Serious adverse events (SAEs) (all) | 3 | 1839 | Odds Ratio (IV, Random, 95% CI) | 0.79 [0.30, 2.07] |
