TABLE 1.

Sample Characteristics at Baseline and Nine Months (% or Mean and [SD])

	Baseline		9 Months
	Non-MA Users (N = 549)	MA Users (N = 263)	Non-MA Users (N = 600)	MA Users (N = 48)
Demographics
Age	34.9 [9.6]	32.3 [7.7]***	34.0 [9.0]	33.8 [8.4]
Gender
Male	77.6	72.6	76.3	81.3
Female	22.4	27.4	23.7	18.7
Race/Ethnicity
African-American	41.2	10.7***	33.3	8.3***
Hispanic	16.0	10.3	13.7	16.7
White Non-Hispanic	38.8	72.2	47.5	75.0
Other	4.0	6.8	5.5	0.0
# Prior AOD Treatments	3.1 [5.5]	2.1 [3.5]**	2.8 [5.0]	2.8 [3.1]
Marital/Partner Status
Never Married	55.1	56.3	55.8	60.4
Legally Married	13.1	14.5	14.0	6.3
Living as Married	4.4	2.7	3.5	4.2
Separated	5.1	8.4	6.2	2.1
Divorced	21.9	17.9	20.4	25.0
Widowed	0.4	0.4	0.2	2.1
Living w/Spouse or Partner	57.4	65.1*	33.8	37.5
Same-sex Partner	2.6	4.6	1.7	2.1
Socioeconomic Position
High School Grad./GED	72.7	81.7**	76.5	79.2
Employment Six Months Prior	55.0	35.4***	65.0	62.5
MA Use by Site
Colorado	24.4	26.6	24.2	25.5
Connecticut	35.3	2.3	28.4	6.4
Kentucky	29.9	13.7	23.9	10.6
Oregon	10.4	57.4***	23.5	57.4***

^*p < 0.05

^**p < 0.01

^***p < 0.001