Table 2.

Bivariate logistic regressions evaluating the influence of age in the dependent variables shown^*

	18–24 (n=494)	P Value	25–34 (n=998)	P Value	35–44 (n=605)	P Value	45+ (n=476)	P Value
	OR (95% CI)		OR (95% CI)		OR (95% CI)		OR (95% CI)
Source of Primary Opioid
Dealer	2.05 (1.65–2.54)	<.001	1.53 (1.30–1.81)	<.001	0.75 (0.63–0.91)	.003	0.37 (0.30–0.45)	<.001
Medical	0.41 (0.33–0.50)	<.001	0.89 (0.76–1.05)	.16	1.28 (1.06–1.53)	.009	2.20 (1.79–2.70)	<.001
Shared	1.23 (1.01–1.49)	.04	1.11 (0.95–1.30)	.20	0.86 (0.71–1.03)	.10	0.83 (0.68–1.02)	.07
Stolen	1.40 (1.09–1.81)	.009	1.19 (0.96–1.48)	.11	0.74 (0.56–0.96)	.03	0.72 (0.53–0.97)	.03
Psychiatric Disorder
Any	0.68 (0.55–0.83)	<.001	0.84 (0.72–0.99)	.03	1.20 (1.00–1.45)	.05	1.60 (1.30–1.97)	<.001
Anxiety	0.64 (0.48–0.85)	.002	1.45 (1.15–1.83)	.002	0.97 (0.75–1.25)	.82	0.91 (0.70–1.19)	.51
Bipolar	0.82 (0.59–1.14)	.23	1.00 (0.79–1.28)	.10	1.11 (0.85–1.44)	.46	1.05 (0.79–1.39)	.76
Depression	0.52 (0.38–0.71)	<.001	1.15 (0.89–1.50)	.29	1.17 (0.87–1.57)	.30	1.25 (0.91–1.71)	.17
Other	1.80 (1.32–2.45)	<.001	1.15 (0.90–1.49)	.27	0.82 (0.61–1.10)	.19	0.58 (0.41–0.80)	.001
Physical Health
Moderate to Severe Pain in last 7 days	0.53 (0.44–0.65)	<.001	0.78 (0.67–0.92)	.003	1.34 (1.11–1.62)	.002	2.12 (1.70–2.64)	<.001
Substance Use
Alcohol Dependence	0.58 (0.46–0.73)	<.001	0.65 (0.54–0.78)	<.001	1.34 (1.10–1.64)	.004	2.33 (1.86–2.91)	<.001
Nicotine Dependence	0.57 (0.44–0.72)	<.001	1.01 (0.83–1.24)	.89	1.35 (1.06–1.73)	.02	1.30 (0.99–1.71)	.06

^*Numbers in bold are statistically significant (a priori set at P<.01)