Table 4.

Crude and multivariate association with smoking intensity among experimental smokers

		Community only† n=1289		All variables‡ n=1263
Variable	Crude OR	Adjusted OR	95% CI	Adjusted OR	95% CI
Individual characteristics
Categorical
Gender
Male	Reference
Female	0.93			1.05	0.84 to 1.33
Race/ethnicity
White	Reference
Black	0.25*			0.48*	0.30 to 0.79
Hispanic	0.40*			0.46*	0.31 to 0.69
Mixed race/other	0.60*			0.53*	0.34 to 0.85
Sibling smokes
No	Reference
Yes	1.21			0.98	0.76 to 1.26
Friend smoking
None	Reference
Some	4.73*			3.37*	2.37 to 4.81
Most	33.62*			20.27*	13.22 to 31.08
Continuous
Age (for each additional year)	1.37*			1.32*	1.21 to 1.44
Socioeconomic status	1.10			1.09	0.94 to 1.26
Movie smoking exposure	1.29			1.04	0.68 to 1.59
Team sports participation	0.36*			0.38*	0.26 to 0.55
Sensation seeking	12.95*			6.57*	3.71 to 11.64
Community characteristics
Tobacco outlet density (per 1000 people)	0.62*	0.98	0.64 to 1.50	1.11	0.70 to 1.79
Tobacco outlet proximity (distance in miles to nearest outlet)	1.32	0.76	0.48 to 1.20	0.74	0.45 to 1.20
Proportion population Black§	0.15*	0.12*	0.07 to 0.22	0.42	0.18 to 1.00
Proportion population Hispanic§	0.20*	0.13*	0.06 to 0.32	0.43	0.14 to 1.33
Poverty§,¶	0.02*	1.54	0.24 to 9.96	1.14	0.13 to 10.03

*p<0.05.

†Pseudo R²=0.02.

‡Pseudo R²=0.15.

§For each adolescent's census tract.

¶Proportion of families with income below the poverty level.