. Author manuscript; available in PMC: 2012 May 1.

Published in final edited form as: Public Health. 2011 Mar 16;125(5):269–274. doi: 10.1016/j.puhe.2011.01.009

Table 3.

Multiple regressions and logistic regression on quality of life and concurrent substance use.

Standardized estimates	Physical health	Psychological health	Social health	Environmental health	Concurrent drug use

	β	β	β	β	OR
Female	−0.047	0.044	0.044	−0.079^*	0.999
Age	−0.031	−0.098	−0.098^*	−0.102^*	1.014
Years of education	0.038	−0.078	−0.078	0.048	1.016
Currently married/cohabiting	0.004	0.033^*	0.033	0.076^*	0.823
Unemployed	−0.307	−0.061^*	−0.060	−0.142^***	0.754
Years since first opioid use	−0.069	0.015^*	0.015	−0.055	1.062^*
Injecting drug user	−0.078	−0.083	−0.082^*	−0.084^*	1.166
Duration of maintenance methadone therapy (months)	−0.094^*	−0.033	−0.032	0.006	0.993
Current daily dose	−0.083^*	−0.072	−0.071	0.011	1.011^*
Family support	0.360^***	0.378^***	0.378^***	0.449^***	0.970^**

OR, odds ratio.

P<0.05,

^**

P<0.01,

^***

P<0.001.