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. Author manuscript; available in PMC: 2013 Oct 1.

Published in final edited form as: J Subst Abuse Treat. 2012 Jan 28;43(3):269–275. doi: 10.1016/j.jsat.2011.12.006

Table 2.

Urine test results: Fractions using opiates and other drugs, Hmong and non-Hmong, by quarter

		Fraction using opiates				Fraction using other drugs
Quarter	Ethnicity	Estimate	P^*	Lower 95% CL	Upper 95% CL	Estimate	P^*	Lower 95% CL	Upper 95% CL
1	Hmong	0.37	0.046	0.29	0.46	0.01	<0.000 1	0.01	0.02
	Non- Hmong	0.26		0.19	0.34	0.24		0.16	0.34
2	Hmong	0.18	0.64	0.13	0.24	0.01	<0.000 1	0.01	0.03
	Non- Hmong	0.16		0.11	0.23	0.30		0.20	0.42
3	Hmong	0.13	0.85	0.09	0.18	0.01	<0.000 1	0.01	0.03
	Non- Hmong	0.13		0.09	0.19	0.31		0.20	0.45
4	Hmong	0.15	0.67	0.10	0.22	0.01	<0.000 1	0.00	0.02
	Non- Hmong	0.13		0.08	0.19	0.34		0.22	0.49

^*

Comparing Hmong vs. non-Hmong in each quarter