None
(N=10)
1-8
(N=31)
15-50
(N=17)
x22 p
Demographics and Background          
Age (years) 37.40+7.57 38.48+8.77 37.47+9.41 0.101 0.90
Male 50.0% 45.2% 64.7% 1.69 0.43
Hispanic 10.0% 22.6% 23.5% 0.85 0.66
White 90.0% 90.3% 88.2% 0.05 0.97
Some College 40.0% 51.6% 29.4% 2.25 0.32
Live in own place 50.0% 54.8% 29.4% 2.91 0.23
Support group in last 30 days2 0.0% 0.0% 33.3% 10.03 0.007
Have valid drivers license 30.0% 32.3% 41.2% 0.49 0.78
Have car available 30.0% 19.4% 23.5% 0.51 0.78
Worked 9 days or more last 30 days 40.0% 35.5% 52.9% 1.39 0.50
Any current legal involvement 30.0% 25.8% 17.6% 0.63 0.73
Alcohol and Drug Use          
Drank alcohol 10 or more days last 30 days 50.0% 35.5% 17.6% 3.22 0.20
Any alcohol problems last 30 days 30.0% 19.4% 5.9% 2.78 0.25
Cocaine positive 20.0% 29.0% 11.8% 1.92 0.38
Amphetamine positive 100.0% 87.1% 70.6% 4.50 0.11
Ever inject 70.0% 71.0% 82.4% 0.85 0.65
Ever inject meth 70.0% 67.7% 82.4% 1.21 0.55
Times inject meth last 30 days 11.50+15.64 16.48+21.81 22.35+35.48 0.591 0.56
Times use meth (non-inj) last 30 days 47.80+39.40 51.86+122.38 31.71+63.27 0.243 0.79
Mental Health          
Any psych outpatient 50.0% 48.4% 37.5% 0.60 0.74
Symptoms last 30 days          
Depression 20.0% 32.3% 52.9% 3.41 0.18
Anxiety 40.0% 58.1% 64.7% 1.60 0.45
Trouble concentrating 70.0% 45.2% 41.2% 2.35 0.31
Trouble controlling violent thoughts 20.0% 32.3% 35.3% 0.73 0.69
Thoughts of suicide 10.0% 19.4% 23.5% 0.76 0.69
Chi-square tests for categorical variables and ANOVAs for continuous variables were used to compare across groups. Statistics and p-values are bolded when p < 0.05. 1F2,552 N=393F2,54
Table 1B: Client Characteristics at Baseline by Session Attendance (% or mean ± S.D.)
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