Antileukotrienes (ALs) v inhaled corticosteroids (ICSs) for chronic asthma at 4–37 weeks*
| Weighted event rates | ||||
|---|---|---|---|---|
| Outcome | ALs | ICSs | RRI (95% CI) | NNH (CI) |
| *Abbreviations defined in glossary; RRI, NNH, and CI calculated from data in article using a random effects model. | ||||
| ≥1 asthma exacerbationrequiring systemic corticosteroids | 8.9% | 5.9% | 61% (15 to 125) | 34 (17 to 334) |