Table 1.

Predictors of relapse to smoking after 10 weeks (70 days).

	Model I (with interaction)		Model II (without interaction)
	Hazard ratio	95% CI	Hazard ratio	95% CI
Bupropion treatment	0.78	0.49–1.24	0.77	0.49–1.24
Gender- male	1.10	0.52–1.97	1.08	0.53–2.00
Genetic risk score	1.97**	1.13–3.43	1.06	0.91–1.24
Nicotine dependence (ND)#	1.63**	1.12–2.37	1.05	0.94–1.19
Genetic risk score by ND*	0.90**	0.82–0.98	–	–

Notes: Hazard ratios estimated from Cox regression models.

^#Measured by fagerstrom test for nicotine dependence;

^**P ≤ 0.01.