. 2015 Jan 14;17(11):1377–1384. doi: 10.1093/ntr/ntu347

Table 1.

Demographic and Tobacco Use Characteristics at Baseline

	Run-in group
	Standard (n = 48)	Extended (n = 47)	p value
Age, years	46.7 (9.3)	45.8 (10.1)	.68
Sex, female	54%	48%	.76
Racial/ethnic minority	10%	8%	.75
Education beyond high school	45%	43%	.84
Married, n (%)	27 (55%)	22 (45%)	.36
Income	40K–55K	25K–39K	.06
Cigarettes per day	22.0 (6.0)	23.4 (7.9)	.33
FTND	5.8 (1.7)	6.0 (1.9)	.50
Years smoking	28.8 (9.0)	26.7 (11)	.34
Daily assessment compliance^a	96%	94%	.46

FTND = Fagerström Test of Nicotine Dependence. Values are mean (SD) unless otherwise noted.

^a n = 90 (46 standard run-in group) for daily assessments.