Table 2.

Logistic Regression Model Predicting Abstinence at Week 8

Variables	Odds ratio	95% confidence interval	Wald χ2	p value
Age	1.02	0.99, 1.03	1.09	.31
Race	0.83	0.55, 1.24	0.86	.35
Nicotine dependence	0.84	0.76, 0.93	11.65	<.001
Depressive symptoms	1.00	0.98, 1.03	0.88	.58
Anhedonic capacity	3.24	1.40, 7.51	7.51	.006
Gender	1.24	0.81, 1.89	0.95	.33
Anhedonic capacity × gender	0.48	0.16, 1.43	1.74	.19

Race (0 = white, 1 = Black/African American), gender (0 = male, 1 = female), and anhedonic capacity (0 = hedonic, 1 = anhedonic). Nicotine dependence, depressive symptoms, and anhedonia (dichotomous) were measured using Fägerstrom Test for Nicotine Dependence, Inventory of Depressive Symptomatology, and Snaith–Hamilton Pleasure Scale, respectively.