Table 2.

Substance use disorders as a predictor of other substance use disorders among subsample of 2007 NRS drivers. (N = 4,277)

	Alcohol Use Disorder		Marijuana Use Disorder		Cocaine Use Disorder		Pain Killer Use Disorder
	AOR†	(95% CI)	AOR	(95% CI)	AOR	(95% CI)	AOR	(95% CI)
Alcohol Non-use disorder v. Alcohol Use Disorder	--	--	11.09***	4.98–24.73	1.71	0.64–4.56	0.53	0.22–1.28
Marijuana Non-use disorder v. Marijuana Use Disorder	11.16***	5.11–24.38	--	--	42.20***	13.61–130.92	0.54	0.17–1.75
Cocaine Non-use disorder v. Cocaine Use Disorder	1.35	0.50–3.66	26.96***	8.77–82.89	--	--	25.81***	9.88–67.40
Pain Killer Non-use disorder v. Pain Killer Use Disorder	0.51	0.22–1.20	1.02	0.32–3.27	29.85***	10.93–81.50	--	--
Sex (Male referent)	1.03	0.61–1.71	1.04	0.46–2.35	0.73	0.24–2.18	0.32**	0.15–0.68
Age (Under 34 years referent)	0.98*	0.96–0.99	0.92**	0.88–0.97	1.02	0.98–1.05	1.01	0.98–1.03
Race (White referent)	0.38*	0.21–0.70	3.35**	1.51–7.44	0.19**	0.06–0.58	3.43***	1.89–6.19

^*= p<.05,

^**= p<.01,

^***= p<.001

^†Adjusted Odds Ratio – adjusted for sex, age and race

In this table, variables are weighted to reflect national populations.