Table 1:

Effectiveness of medications for smoking cessation relative to placebo (adapted from data provided in Cahill et al.11)

MedicationNo. of studiesEstimated OR (95% CI)
NRT patch431.91 (1.71–2.14)
NRT gum561.68 (1.51–1.88)
Other type of NRT (e.g., lozenge, inhaler, oral spray)162.04 (1.75–2.38)
Combination NRT22.73 (2.07–3.65)
Bupropion361.85 (1.63–2.10)
Varenicline152.89 (2.40–3.48)
  • Note: CI = confidence interval, NRT = nicotine replacement therapy, OR = odds ratio.