Table 2.

Past-year CU and CUD in the sample (prevalence) and past-year CUD among past-year cannabis users (conditional prevalence)

Race/ethnicity	CU in sample		CUD in sample		CUD among cannabis users
Sample size	N=394,400		N=394,400		n=68,292
	%	95% CI	%	95% CI	%	95% CI
Overall prevalence
Total	10.82	10.66–10.99	1.66	1.61–1.72	15.35	14.84–15.86
Year
2005	10.45	10.05–10.88	1.60	1.48–1.73	15.32	14.21–16.50
2006	10.28	9.91–10.67	1.70	1.57–1.84	16.54	15.36–17.79
2007	10.15	9.73–10.59	1.58	1.46–1.71	15.58	14.38–16.86
2008	10.27	9.81–10.76	1.68	1.56–1.81	16.34	15.17–17.59
2009	11.41	11.02–11.80	1.73	1.59–1.88	15.16	14.05–16.34
2010	11.60	11.19–12.04	1.73	1.56–1.92	14.93	13.54–16.43
2011	11.54	11.09–12.01	1.60	1.48–1.74	13.89	12.70–15.17
Race/ethnicity
White	11.03	10.81–11.26	1.51	1.45–1.57	13.70	13.16–14.24
Black	12.84	12.29–13.41	2.45	2.26–2.66	19.11	17.82–20.48
Native American	14.97	13.13–17.03	3.69	2.96–4.58	24.63	20.20–29.68
Native Hawaiian/  Pacific Islander	10.64	8.05–13.95	1.34	0.91–1.97	12.62	7.74–19.90
Asian American	4.59	3.98–5.29	0.78	0.61–1.00	17.03	13.79–20.86
Mixed race	17.62	16.08–19.27	2.79	2.33–3.32	15.81	13.15–18.88
Hispanic	9.37	9.05–9.70	1.83	1.70–1.97	19.55	18.13–21.07
Age in years
12–17	13.43	13.21–13.66	3.43	3.29–3.59	25.57	24.68–26.47
18–25	29.13	28.77–29.50	5.65	5.46–5.85	19.39	18.83–19.97
26–34	15.45	14.88–16.04	1.93	1.75–2.14	12.51	11.36–13.75
35–49	8.51	8.23–8.79	0.82	0.73–0.91	9.59	8.63–10.66
50–64	5.08	4.71–5.48	0.35	0.27–0.45	6.86	5.36–8.73
65+	0.73	0.52–1.01	0.03	0.02–0.10	4.77	1.67–12.87
Sex
Male	13.53	13.29–13.78	2.30	2.22–2.38	16.97	16.35–17.61
Female	8.27	8.10–8.45	1.06	1.01–1.11	12.85	12.28–13.44