Table 2.

Demographic Predictors of Class Membership

	Low-Average OUD Rates		Elevated OUD Rates			Very High OUD Rates
Qualitative Description	Class 2 Depressed	Class 3 Alcohol- Tobacco	Class 4 Alcohol- Tobacco- Cocaine	Class 5 Internalizing	Class 6 Bipolar	Class 7 Polysubstance/ Elevated Psychopathology	Class 8 Polysubstance/ Very High Psychopathology
Variable	OR	OR	OR	OR	OR	OR	OR
American Indian/Alaska Native, non-Hispanic	0.97	1.18	4.87*	2.16	3.59*	0.82	6.12*
Asian/Native Hawaiian/Other Pacific Islander, non-Hispanic	0.25*	0.25*	0.14*	0.07*	0.31*	0.14*	0.00*
Black, non-Hispanic	0.48*	0.62*	0.61*	0.44*	0.85	0.21*	0.41*
Hispanic, any race	0.45*	0.37*	0.59*	0.31*	0.78	0.19*	0.34*
Male	0.27*	3.44*	0.88	0.36*	0.84	1.65*	0.65
Age (−SD)a	1.04	1.52*	1.47*	1.28*	1.52*	1.75*	1.63*
Age (+1SD)a	0.97	0.66*	0.68*	0.78*	0.66*	0.57*	0.61*

Note: Reference classes for predictors were White/non-Hispanic (for race/ethnicity) and female (for sex). The reference class for outcome was class 1 (mentally healthy class). The * mark reflects significance at the .05 level after adjusting for the false discovery rate. OR=odds ratio

^aSignificance tests for age reflect test of overall mean odds ratio; specific odds ratios were calculated by comparing the estimated odds between those associated with ±1 standard deviation in age (which reflect ages 28.10 and 63.16, respectively) compared to the estimated odds associated with the average sample age (45.63)