Table 2.

Adjusted odds ratios for past 30-day non-medical use of prescription opioids by gender

Characteristic	Adjusted odds ratio for non-medical use (compared w/medical use and no use combined) (n=10,965)
	Males OR (95% CI)	Females OR (95% CI)
Age (years)	1.0 (0.9, 1.2)	1.1 (1.0, 1.2)
Living situation:
Live w/both parents	1.0	1.0
Separated parents	1.0 (0.7, 1.5)	1.2 (0.8, 1.7)
Not living w/parents	1.1 (0.7, 1.8)	1.0 (0.6, 1.7)
School grades:#
A-B	1.0	1.0
C-D	1.0 (0.8, 1.5)	1.7 (1.2, 2.5)
Employed:
No	1.0	1.0
Yes	1.1 (0.8, 1.6)	1.0 (0.7, 1.5)
Marijuana use:
Never	1.0	1.0
Ever (not in past 30 days)	5.0 (2.5, 9.9)	1.9 (1.0, 3.6)
Recent	9.3 (5.0, 17.5)	4.6 (2.7, 7.9)
Tobacco use:
Non-smoker	1.0	1.0
Former smoker	1.9 (1.2, 3.1)	1.4 (0.8, 2.3)
Current smoker	4.5 (2.8, 7.0)	2.8 (1.7, 4.5)
Alcohol use:
Never	1.0	1.0
Ever (not in past 30 days)	1.3 (0.6, 2.5)	2.3 (1.0, 5.1)
Recent	2.7 (1.5, 4.8)	5.3 (2.5, 10.9)

^*Adjusted for all other variables

^#F and unknown grades not included in logistic regression model due to small numbers