Table 4

HRs (95% CI) of events during 6 months’ follow-up in the propensity score matched samples

HR (95% CI)
EventBupropion vs NRT (N=682)Varenicline vs NRT (N=6968)
Ischaemic heart disease1.23 (0.49 to 3.12)0.97 (0.75 to 1.24)
Stroke0.49 (0.12 to 1.95)1.06 (0.65 to 1.75)
Heart failure0.99 (0.06 to 15.89)0.77 (0.41 to 1.45)
Peripheral vascular disease0.99 (0.06 to 15.80)0.57 (0.31 to 1.05)
Arrhythmia3.96 (0.44 to 35.41)1.12 (0.70 to 1.81)
Depression0.75 (0.40 to 1.41)0.68 (0.55 to 0.83)
Self-harm0.49 (0.04 to 5.43)0.60 (0.26 to 1.37)
  • NRT, nicotine replacement therapy.