Table 2.

Baseline Characteristics

Characteristic	All Participants, Mean (SD)	Participants not Smoking at 6 Months, Mean (SD)
Age, y	57.4 (8.7)	52.0 (8.7)
Male, %	100.0	100.0
Race, % white	61.0	33.0
Education level, y	12.8 (2.4)	13.2 (2.6)
Psychiatric history, %	39.1	33.3
FTND score	7.1 (2.3)	7.3 (2.1)
Cigarettes smoked/d, n	25.2 (13.7)	19.1 (9.2)
Previous quit attempts, n	2.9 (1.5), range 2–5	2.2 (0.8)
Longest period of past cessation, wk	21.1 (22)	27.5 (20.8)
Age started smoking, y	15.0 (3.6)	15.3 (2.6)

FTND, Fagerström Test for Nicotine Dependence.