. Author manuscript; available in PMC: 2014 Feb 1.

Published in final edited form as: Drug Alcohol Depend. 2012 Aug 27;128(1-2):161–165. doi: 10.1016/j.drugalcdep.2012.08.003

Table 2.

Correlates of clinically significant pain in past week (N = 480)

	Univariate Regression		Multivariate Regression

	OR (95% CI)	P value^*	OR (95% CI)	P value^*
Age (years)
≤ 46	Reference	0.011	Reference	0.427
> 46	1.59 (1.12-2.28)		1.11 (0.72-1.71)
Marital status
Married	Reference	0.009	Reference	0.646
Unmarried	0.52 (0.32-0.85)		0.59 (0.33-1.05)
Current use of prescribed opioid therapy for pain treatment
No	Reference	< 0.001	Reference	< 0.001
Yes	8.77 (5.02-15.31)		7.74 (4.25-14.13)
Current methadone dose (mg)^a	Reference	0.003	Reference	0.027
Current methadone dose (mg)^a	1.01 (1.00-1.01)		1.01 (1.00-1.01)
Number of medical comorbidities^b	Reference	< 0.001	Reference	< 0.001
Number of medical comorbidities^b	2.34 (1.72-3.18)		2.09 (1.45-2.99)
BDI-II
Minimal/mild	Reference	< 0.001	Reference	0.010
Moderate/severe	2.38 (1.66-3.43)		2.25 (1.40-3.62)
MOS-SF-12
MCS	1.00 (0.99-1.02)	0.950	1.01 (0.99-1.03)	0.330
PCS	0.96 (0.93-0.98)	0.000	0.97 (0.94-1.00)	0.070

Abbreviations: BDI-II, Beck Depression Inventory-II; MOS-SF-12, Medical Outcomes Survey-Short Form; MCS, Mental Components Summary Score; PCS, Physical Components Summary Score, controlled for bodily pain.

OR for each 1 mg increase in methadone dose.

OR for each increasing level of comorbidity.

p < 0.05