Table 1 Demographic and Institutional Descriptive Statistics, Total and Analysis Samples
| Â | Total Sample | Analysis Sample | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Characteristic | % Total (N = 56) | % IMU (n = 26) | % SUP (n = 30) | t or z score | p-value | % Total (N = 38) | % IMU (n = 19) | % SUP (n = 19) | t or z score | p-value |
Mean age (SD) | 29.8 (6.9) | 29.0 (6.4) | 30.6 (7.2) | 0.89 | .377 | 30.1 (6.7) | 29.5 (7.0) | 30.7 (6.6) | 0.55 | .587 |
Race/ethnicity | ||||||||||
 White | 57.1 | 50.0 | 63.3 | 1.01 | .315 | 52.6 | 57.9 | 47.4 | −0.65 | .516 |
 Black | 8.9 | 11.5 | 6.7 | −0.64 | .524 | 10.5 | 10.5 | 10.5 | 0.00 | 1.000 |
 Hispanic | 26.8 | 23.1 | 30.0 | 0.58 | .560 | 29.0 | 15.8 | 42.1 | 1.79 | .074 |
 Asian | 1.8 | 3.9 | 0.0 | −1.08 | .278 | 2.6 | 5.3 | 0.0 | −1.01 | .311 |
 American Indian | 5.4 | 11.5 | 0.0 | −1.91 | .056 | 5.3 | 10.5 | 0.0 | −1.45 | .146 |
Gang affiliation | 76.8 | 73.1 | 80.0 | 0.61 | .541 | 76.3 | 68.4 | 84.2 | 1.15 | .252 |
Mental health | ||||||||||
 MH-0 | 28.6 | 23.1 | 33.3 | 0.85 | .397 | 26.3 | 26.3 | 26.3 | 0.00 | 1.000 |
 MH-1 | 28.6 | 19.2 | 36.7 | 1.44 | .150 | 23.7 | 10.5 | 36.8 | 1.91 | .056 |
 MH-R | 30.4 | 53.9 | 10.0 | −3.56 | <.001 | 36.8 | 63.2 | 10.5 | −3.36 | <.001 |
 MH-2 | 12.5 | 3.9 | 20.0 | 1.82 | .068 | 13.2 | 0.0 | 26.3 | 2.40 | .016 |
ACRS | ||||||||||
 Low-risk | 48.2 | 42.3 | 53.3 | 0.82 | .410 | 52.6 | 42.1 | 63.2 | 1.30 | .194 |
 Moderate-risk | 50.0 | 53.9 | 46.7 | −0.54 | .592 | 44.7 | 52.6 | 36.8 | −0.98 | .328 |
 High-risk | 1.8 | 3.9 | 0.0 | −1.08 | .278 | 2.6 | 5.3 | 0.0 | −1.01 | .311 |
Prior IMU | 44.6 | 38.5 | 50.0 | 0.87 | .386 | 44.7 | 36.8 | 52.6 | 0.98 | .328 |