Table 4.

Multivariable logistic regression model of self-reporting substance use in during the past 72 h among urinalysis-confirmed users

	AORa	95% CI	p
Self-reported drug use during the past 72 h
PHC group (Ref = RYCS group)	1.25	(0.56–2.77)	0.590

^aadjusted for gender (male/ female)

dds ratio was not calculated to compare of self-reported substance use over the past year, as some people may have correctly self-report of substance use over the past year, but a urine test could not determine substance use over the past year