Table 1.

Non-Tobacco Users vs. Cigarette Smokers Demographics

	Non-Tobacco User (n=976)	Cigarette Smoker (n=578)	Difference	p-value
Gender			–	0.15
Male	472 (44.9 ± 2.2 [40.3, 49.4])	337 (52.2 ± 3.6 [44.7, 59.7])
Female	504 (55.1 ± 2.2 [50.6, 59.7])	241 (47.8 ± 3.6 [40.3, 55.3])
Race/Ethnicity			–	0.47
Mexican American/Hispanic	197 (14.4 ± 2.8 [8.6, 20.2])	77 (10.5 ± 2.5 [5.2, 15.9])
Non-Hispanic White	362 (68.9 ± 3.7 [61.1, 76.7])	280 (71.5 ± 5.1 [60.8, 82.2])
Non-Hispanic Black	235 (9.6 ± 2.1 [5.2, 14.0])	169 (11.2 ± 2.6 [5.6, 16.7])
Other Race - Including Multi-Racial	182 (7.1 ± 1.0 [5.0, 9.1])	52 (6.8 ± 2.1 [2.4, 11.2])
Education			–	<0.001
Less Than HS	179 (11.2 ± 1.6 [7.8, 14.6])	156 (22.4 ± 1.6 [18.9, 25.8])
HS or Higher	797 (88.8 ± 1.6 [85.4, 92.2])	422 (77.6 ± 1.6 [74.2, 81.1])
Standing Height (cm)	167.8 ± 0.6 (166.6, 168.9)	170.3 ± 0.6 (169.1, 171.5)	2.5 ± 0.8 (0.8, 4.3)	0.01
Weight (kg)	81.7 ± 1.0 (79.7, 83.7)	80.2 ± 1.1 (77.8, 82.5)	−1.5 ± 1.2 (−4.1, 1.0)	0.22
Age (in Years) at Screening	48.7 ± 1.2 (46.2, 51.2)	45.7 ± 0.6 (44.3, 47.0)	−3.1 ± 1.2 (−5.6, −0.5)	0.02
Ratio of Family Income to Poverty	3.1 ± 0.1 (2.9, 3.4)	2.3 ± 0.1 (2.0, 2.6)	−0.8 ± 0.1 (−1.1, −0.5)	<0.001
Serum Cotinine (ng/mL)	0.1 ± 0.0 (0.1, 0.2)	228.4 ± 6.5 (214.7, 242.1)	228.3 ± 6.5 (214.7, 241.9)	<0.001

Categorical Variables: Unweighted Frequencies (Weighted Column % ± Standard Error, [95% CI]), Rao-Scott Chi-Square Adj. F p-value

Continuous Variables: Weighted Mean ± Standard Error (95% CI), Difference Cigarette Smoker – Non-Tobacco User in Least Squared Means (95% CI); Wald p-value

CI = Confidence Interval