Table 1.

Demographic and Baseline Smoking Characteristics of Study Participants

	SS (n = 21)	CS (n = 21)
Age [M (SD)]	44.1 (7.0)	47.1 (10.4)
Male	14	11
Race	12 W / 2 AA / 7 0	16 W / 4 AA / 1 O
Hispanic ethnicity	2	2
Employed full- or part-time	2	5
Annual income above US$10,000	7	13
≥ 12 years of education	19	18
Cigarettes per day	32.6 (13.6)	31.0 (12.0)
Nicotine dependence (FTND score)	7.7 (1.4)	7.5 (1.4)
Min to first cigarette of the day	5.7 (7.5)	7.8 (9.4)
Years of daily smoking	26.4 (9.2)	31.8 (11.4)
Salivary cotinine level (ng/ml)	367.6 (147.4)	331.3 (167.1)
Pre-session CO level (ppm)	27.1 ± 8.6**	19.8 ± 6.3
Smoking stage of change	12 Pre/9 Con/0 Prep	11 Pre/7 Con/3
PANSS positive scale score	16.7 (4.4)	–
PANSS negative scale score	18.3 (6.8)	–
PANSS general scale score	33.6 (6.6)	–
PANSS total score	68.6 (16.5)	–
Antipsychotic drug class	6 Typ / 10 A / 5 O	–

Abbreviations: SS, smokers with schizophrenia; CS, control smokers; W, white; AA, African-American; O, other; FTND, Fagerström Test of Nicotine Dependence; CO, carbon monoxide; Pre, precontemplation; Con, Contemplation; Prep, preparation; PANSS, Positive and Negative Syndrome Scale; Typ, typical, A, atypical.

^**p < .01