Table 4.

Odd ratios (ORs) for meeting criteria for cannabis abuse or dependence among recent-onset alcohol users (prior 2 years) without and with statistical adjustments (N = 2176)

	OR	95% CI	OR	95% CI
	Without Statistical Adjustment		With Statistical Adjustment
Sex
Male	1.0	—	1.0	—
Female	0.9	0.6-1.2	0.9	0.6-1.2
Age
22-26	1.0	—	1.0	—
21	1.5	0.1-27.3	1.5	0.1-27.0
20	3.1	1.0-10.1	3.1	1.0-10.2
19	2.6	0.7-9.4	2.7	0.7-9.8
18	4.7**	1.7-13.4	4.8**	1.7-13.5
17	5.2*	1.4-18.7	5.3*	1.5-19.2
16	6.8**	2.3-20.0	7.0***	2.4-20.6
15	7.2***	2.6-19.8	7.4***	2.7-20.4
14	5.6**	1.7-18.7	5.8**	1.7-19.5
13	5.6**	1.8-17.7	5.7**	1.8-18.0
12	3.9‡	0.6-23.8	3.9‡	0.6-23.7
Race/ethnicity
White	1.0	—	1.0	—
Black	0.9	0.6-1.3	0.9	0.6-1.4
Hispanic	1.2	0.9-1.7	1.2	0.9-1.6
Family income
0-US$ 19,999	0.8	0.6-1.1	0.9	0.6-1.4
US$ 20,000-US$ 49,999	1.0	—	1.0	—
US$ 50,000-US$ 74,999	1.2	0.9-1.7	1.2	0.8-1.7
US$ 75,000 or above	1.3	0.9-1.8	1.3	0.9-1.8
Population density
MSA of 1 million plus	1.2	0.8-1.8	1.2	0.8-1.7
MSA < 1 million	1.0	—	1.0	—
Residence not in a MSA	1.0	0.7-1.4	1.0	0.7-1.4
Using alcohol prior to cannabis onset
No	1.0	—	1.0	—
Yes	1.2	0.8-1.7	1.3	0.9-1.9

Results based on logistic regression with weighted data and Taylor series linearization for variance estimation to estimate 95% confidence interval (CI) and associated p values.

^‡p = .05.

^*p < .05.

^**p < .01.

^***p < .001.