Table 3.
Continuous outcome measures based on 30-day assessments while Hopkins Data Services was in operation (Business Open) a
| Control M (SD) |
Therapeutic Workplace M (SD) |
F(1,36) | P | |
|---|---|---|---|---|
| Days employed per month | 2.22 (0.44) | 9.64 (0.74) | 16.90 | <.001 |
| Employment income | $60 (13) | $478 (44) | 15.09 | <.001 |
| Public assistance income | $284 (22) | $310 (23) | 0.08 | .772 |
| Illegal income | $82 (23) | $87 (23) | 0.01 | .951 |
| Total income | $539 (38) | $852 (49) | 6.52 | .015 |
| Amount of money spent on drugs | $318 (39) | $127 (16) | 5.14 | .029 |
| Days in outpatient treatment | 2.34 (0.48) | 2.15 (0.49) | 0.04 | .848 |
| Days of methadone use | 16.52 (1.00) | 18.47 (0.97) | 0.20 | .658 |
Note. All measures were collected from the Addiction Severity Index Lite (ASI Lite). Data were analyzed with multilevel analyses with group and time as factors using SAS Proc Mixed analysis.
a
Data are based on the “missing interpolated” analyses in which missing samples were interpolated based on the values before and after the missing values. The “missing-missing” analyses yield similar results, so they are not shown.