Table 1.
Characteristics by tobacco use status over study period for full sample1
| Baseline | 6 Months | 12 Months | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Non-Tobacco Users (n=104) |
Tobacco Users2 (n=315) |
Non-Tobacco Users (n=115) |
Tobacco Users (n=268) |
Non-Tobacco Users (n=104) |
Tobacc o Users (n=281) |
||||
| Individual Factors | |||||||||
| Anxiety/Depressed Scale (mean) | 6.9 | 7.6 | 5.2 | 6.1 | 3.8 | 6.1 | .0002 | ||
| Externalizing Scale (mean) | 18.1 | 20.6 | .015 | 13.0 | 16.9 | <.0001 | 12.0 | 15.0 | .002 |
| Baseline Substance Use Severity (mean) | 2.8 | 5.2 | <.0001 | 3.7 | 4.9 | .001 | 3.4 | 5.0 | <.0001 |
| Baseline Motivation/Readiness Scale (mean) | 45.6 | 47.6 | . | 45.9 | 47.7 | 45.6 | 47.5 | . | |
| Legal Problems (%) | 35.0 | 56.7 | .0001 | 13.0 | 32.5 | <.0001 | 9.6 | 27.4 | .0002 |
| Length of Stay | 67.6 | 75.4 | 60.0 | 81.0 | .025 | 55.2 | 83.7 | .004 | |
| Demographics | |||||||||
| Female (%) | 31.7 | 34.9 | 46.1 | 29.2 | .001 | 41.4 | 33.9 | ||
| African American (%) | 20.2 | 14.3 | 22.8 | 12.4 | .009 | 25.0 | 11.1 | .001 | |
| Native American (%) | 6.7 | 10.2 | 3.5 | 10.1 | .031 | 4.8 | 11.1 | . | |
| Latino (%) | 19.2 | 19.8 | 23.7 | 19.5 | 15.4 | 21.9 | |||
| Asian American (%) | 4.8 | 6.4 | 3.5 | 6.4 | 4.8 | 6.5 | |||
| Caucasian (%) | 49.0 | 49.4 | 46.5 | 51.7 | 50.0 | 49.5 | |||
| Age (mean) | 15.8 | 16.3 | .001 | 15.9 | 16.2 | .031 | 16.0 | 16.2 | |
| Social Environment | |||||||||
| Live w/ someone w/ alc/drg prb (%) | 24.3 | 24.8 | 10.5 | 20.9 | .015 | 15.4 | 17.4 | ||
| Peer alcohol/drug use (%) | 61.1 | 74.7 | .012 | 58.3 | 65.8 | 52.0 | 64.2 | .031 | |
1
Not corrected for multiple comparisons
2
Defined as having used a tobacco product in the last 6 months at baseline