Table 2 Associations between current drug problem and health status, as measured by SF-12 scores.
| Â | Physical Component Subscale | Mental Component Subscale |
|---|---|---|
| Â | Mean (SD) | Mean (SD) |
   Current drug problem | 46.6 (10.6) | 38.8 (12.9) |
   Without current drug problem | 45.7 (11.4) | 42.0 (13.2) |
   p-value | 0.17 | < 0.001 |
   Recent cocaine use | 44.8 (11.4) | 38.1 (12.7) |
   No recent cocaine use | 46.5 (11.0) | 41.7 (13.2) |
   p-value | 0.02 | < 0.001 |
| Â | Beta (95% CI) | Beta (95% CI) |
Change in SF-12 score associated with | Â | Â |
   Current drug problem* | -0.03 (-1.3 to +1.3) | -4.9 (-6.5 to -3.2) |
   Recent cocaine use* | -1.3 (-2.7 to +0.06) | -4.7 (-6.4 to -3.0) |