Comparison of smoking cessation regimens for point prevalence or continuous abstinence at 1 year*

AbstinenceRegimenInterventionPlaceboRBI (95% CI)NNT (CI)
*Abbreviations defined in glossary; RBI, NNT, and CI calculated from data in article and from data provided by the author. †Combination regimen=bupropion plus a nicotine patch.
Point prevalenceBupropion30%16% 94% (31 to 193)7 (4 to 16)
Combination†36%16% 127% (54 to 240) 5 (4 to 9)
ContinuousBupropion18% 6%228% (69 to 548)8 (5 to 15)
Combination†22% 6%229% (108 to 681) 6 (4 to 10)