Table 2.
Means and standard deviations of substance use and social stability
| Variables | Total Sample | CRA | MET | CM | ||||
|---|---|---|---|---|---|---|---|---|
| n | Mean (SD) | n | Mean (SD) | n | Mean (SD) | n | Mean (SD) | |
| Substance usea | ||||||||
| Baseline | 270 | 61.48 (36.88) | 93 | 59.90 (38.89) | 86 | 68.16 (36.19) | 91 | 56.80 (34.85) |
| 3 mo follow-up | 202 | 49.63 (41.48) | 70 | 53.60 (40.76) | 66 | 45.67 (43.24) | 66 | 49.38 (40.66) |
| 6 mo follow-up | 202 | 43.53 (40.34) | 69 | 39.10 (38.83) | 68 | 48.88 (41.43) | 65 | 42.64 (40.74) |
| 12 mo follow-up | 197 | 45.32 (40.17) | 68 | 39.59 (39.86) | 67 | 50.72 (41.27) | 62 | 45.76 (39.10) |
| Social stabilityb | ||||||||
| Baseline | 270 | 46.61 (49.01) | 93 | 42.76 (49.80) | 86 | 38.55 (45.17) | 91 | 58.15 (50.04) |
| 3 mo follow-up | 202 | 72.63 (56.86) | 70 | 65.80 (54.58) | 66 | 75.83 (60.76) | 66 | 76.67 (55.38) |
| 6 mo follow-up | 202 | 93.82 (56.88) | 69 | 81.88 (60.51) | 68 | 99.10 (54.74) | 65 | 100.98 (53.83) |
| 12 mo follow-up | 203 | 102.37 (49.97) | 70 | 103.53 (51.90) | 69 | 101.90 (50.74) | 64 | 101.60 (47.70) |
a
Substance use represents percentage of total days of drug use (except for the use of alcohol and tobacco) in the prior 90 days. The mean score across four time points represents the average percent days of substance use. Higher scores represent higher frequency of substance use.
b
Social stability is a composite score including the percent days of employment, school attendance, and housing days. The mean score across four time points represents the average level of social stability. Higher scores represent greater levels of social stability.