Table 1.

Characteristics of all participants and by analytic subgroup

		Subgroup
Characteristics	All participants (N = 209)	Abstinence versus smoking (n = 90)	Nicotine versus placebo patch (n = 79)
Mean age (years)	30.77 (0.82)	30.43 (1.30)	29.99 (1.39)
Gender (percent male)	51	56	56
Mean cigarettes per day	17.11 (0.35)	16.39 (0.51)	16.20 (0.54)
Mean FTND score (0–10)	4.72 (0.10)	4.54 (0.14)	4.50 (0.14)
Mean years smoking	14.00 (0.75)	12.81 (1.17)	12.37 (1.25)
Mean number of prior quit attempts	1.80 (0.15)	2.17 (0.26)	2.20 (0.30)
Mean longest prior quit attempt (weeks)	17.62 (3.79)	17.04 (3.70)	16.81 (4.10)

Note. Mean values are given with SE in parentheses. FTND, Fagerström Test for Nicotine Dependence.