Physician verbal advice plus an information leaflet v verbal advice alone for acute bronchitis‡
Outcome at 2 weeks
Verbal advice plus leaflet
Verbal advice alone
RRR (95% CI)
NNT (CI)
‡Abbreviations defined in glossary; RRR and CI calculated from data in article.
Antibiotic use
47%
62%
24% (3 to 42)
7 (4 to 63)