Table 3

≥1 exacerbations of asthma according to severity between treatment with salmeterol and increased dose of inhaled steroid†

OutcomesARR favouring salmeterol (95% CI)NNT (CI)†
†Abbreviations defined in glossary; †CI calculated from data in article.
Any exacerbation2.7% (0.4 to 5.04)37 (20 to 233)
Moderate or severe exacerbation2.4% (0.2 to 4.6)41 (22 to 417)