Table 2.

Participant Characteristics in the Derivation and Validation Samples

Variable	Wisconsin Smokers Health Study-2 (WSHS2)	Quitting Using Intensive Treatment Study (QUITS)	Breaking Addiction to Tobacco for Health Cessation Study (BREATHE-C)
Study N	1086	1251	623
Gender (% Female)	52.0%	53.9%	57.3%
Age, Mean (SD)	48.1 (11.6)	49.2 (12.0)	49.7 (12.7)
Race
% White	67.0%	70.3%	69.2%
% Black	28.5%	23.3%	25.8%
% Other	4.5%	6.4%	5.0%
CPD, Mean (SD)	17.0 (8.3)	16.0 (7.5)	16.8 (9.4)
FTCD Total Score, Mean (SD)	4.8 (2.1)	5.0 (2.0)	4.8 (2.2)
Exhaled Carbon Monoxide, ppm Mean (SD)	15.1 (8.4)	16.7 (9.5)	17.9 (11.0)
PANAS Positive Affect	9.8 (3.1)	9.9 (3.1)	10.4 (2.8)
PANAS Negative Affect	5.0 (2.6)	7.3 (3.6)	7.4 (3.2)
Brief WISDM
Total Score	43.9 (12.8)	49.5 (12.1)	48.9 (11.7)
PDM	4.6 (1.3)	5.1 (1.3)	5.1 (1.3)
SDM	3.6 (1.2)	4.1 (1.2)	(1.2)
Craving Subscale	4.7 (1.5)	5.2 (1.4)	5.2 (1.2)

Note. SD = standard deviation. PANAS = Positive and Negative Affect Schedule. Brief WISDM = Brief Wisconsin Inventory of Smoking Dependence Motives; PDM = primary dependence motives; SDM = secondary dependence motives.