Table 1.

Sample characteristics.

	Non-Smoker (N=29)	Ad Lib (N=34)	Withdrawal (N=42)
Sex (% Female)	51.7%	41.2%	40.5%
Marital Status
Single	65.5%	73.5%	81.0%
Married	20.7%	5.9%	11.9%
Divorced	6.9%	11.8%	2.4%
Widowed/Separated	3.4%	2.9%	2.4%
No Answer	3.4%	5.9%	2.4%
Age	35.79 (11.97)	34.12 (12.0)	33.36 (11.35)
Years of Education*	15.15 (2.40)	12.74 (2.44)	13.36 (2.21)
BMI	26.95 (4.97)	28.08 (6.75)	25.71 (4.82)
Cigarettes per day	n/a	14.82 (5.97)	15.07 (5.97)
Years of smoking	n/a	10.03 (8.92)	11.54 (10.59)
FTND	n/a	5.41 (2.27)	4.90 (2.18)
CO
Lab 1	n/a	16.39 (9.99)	2.79 (1.21)
Lab 2	n/a	15.15 (7.95)	2.65 (1.32)

Notes. Otherwise indicated, entries show mean and standard deviation.

^*Non-Smoker vs. Current Smoker and Withdrawal (p > 0.01).