Formoterol v terbutaline for moderate to severe asthma‡
| Outcome at 12 months | Formoterol | Terbutaline | RRR (95% CI) | NNT (CI) |
|---|---|---|---|---|
| ‡Abbreviations defined in glossary; RRR, NNT, and CI calculated from data in article. | ||||
| ≥1 exacerbation | 14% | 24% | 40% (7.6 to 62) | 11 (6 to 66) |