Smoking cessation intervention v usual care at 12 monthsâ€
Outcome
Smoking cessation intervention
Usual care
RRI (95% CI)
NNT (CI)
†Abbreviations defined in glossary; RRI, CI, and NNT calculated from data in article.
Abstinence
13.5%
9.2%
47% (5.3 to 105)
23 (12 to 174)