Reduction aided by nicotine replacement therapy (r-NRT group), motivational advice (motivational group), and no treatment in smokers unmotivated to quit*

ComparisonsOutcomes at 6 monthsEvent ratesRBR (95% CI)NNH
*RBR  =  relative benefit reduction. Other abbreviations defined in glossary; RBR, RBI, NNH, NNT, and CI calculated from data in article.
†NS  =  not significant.
r-NRT v motivational adviceAny quit attempts54% v 59%9% (−8 to 23)NS†
Quit attempts lasting ⩾24 h43% v 51%16% (−3 to 32)NS†
7 day point prevalence abstinence18% v 23%25% (−10 to 49)NS†
RBI (CI)NNT (CI)
r-NRT v no treatmentAny quit attempts54% v 25%120% (69 to 189)4 (3 to 5)
Quit attempts lasting ⩾24 h43% v 16%178% (96 to 297)4 (3 to 6)
7 day point prevalence abstinence18% v 4%301% (103 to 703)8 (6 to 14)
Motivational advice v no treatmentAny quit attempts59% v 25%141% (86 to 216)3 (3 to 4)
Quit attempts lasting ⩾24 h51% v 16%232% (136 to 371)3 (3 to 4)
7 day point prevalence abstinence23% v 4%437% (176 to 959)6 (4 to 8)