TABLE 5.

Logistic regression models predicting marijuana and cocaine/crack use (n = 439)

	Marijuana				Cocaine/Crack
	Past 30-day self-reporta		Positive test resultb		Past 30-day self-reportc		Positive test resultd
Variables	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
Age
18–25	2.686	1.429, 5.050***	2.536	0.942, 6.829*	0.882	0.220, 3.531	0.572	0.223, 1.462
26–30	1.602	0.666, 3.855	1.934	0.719, 5.202	0.344	0.045, 2.629	0.741	0.30, 1.830
31+	1.00	–	1.00	–	1.00	–	1.00	–
Race/ethnicity
African American	1.430	0.720, 2.837	4.107	1.349, 12.508**	0.849	0.136, 5.295	3.416	0.758, 15.388
Hispanic	1.062	0.498, 2.267	1.928	0.585, 6.355	5.151	0.758, 34.992*	3.964	0.868, 18.103*
Other	0.89	0.289, 2.741	2.295	0.610, 8.629	0.592	0.033, 10.535	1.282	0.148, 11.101
White	1.00	–	1.00	–	1.00	–	1.00	–
Gender
Male	2.876	1.552, 5.331****	1.835	1.010, 3.334**	2.140	0.535, 8.565	1.463	0.660, 3.243
Female	1.00	–	1.00	–	1.00	–	1.00	–
SES
Low	1.745	0.685, 4.447	2.061	0.788, 5.391	–	–	–	–
Medium	1.028	0.414, 2.554	1.214	0.426, 3.464	–	–	–	–
High	1.00	–	1.00	–	–	–	–	–
Children present in HH
Yes	0.967	0.447, 2.094	0.926	0.437, 1.965	1.140	0.202, 6.427	0.809	0.289, 2.264
No	1.00	–	1.00	–	1.00	–	1.00	–
Interview date
Post-9/11/2001	0.546	0.298, .999**	0.472	0.220, 1.014*	0.157	0.021, 1.191*	0.414	0.202, 0.848**
Pre-9/11/2001	1.00	–	1.00	–	1.00	–	1.00	–
R2	0.090		0.117		0.160		0.064

Only cases with valid urine and oral fluid tests were included. Sample size is weighted and rounded to the nearest whole value.

*p < 0.10, **p < 0.05, ***p < 0.01, ****p < 0.001

^aGoodness-of-fit statistics: χ² = 9.38, df = 8, ns

^bGoodness-of-fit statistics: χ² = 2.85, df = 8, ns

^cGoodness-of-fit statistics: χ² = 14.14, df = 8, p < 0.10

^dGoodness-of-fit statistics: χ² = 6.09, df = 8, ns.