Table 1.
Characteristics of Research Participants
| Methamphetamine (n = 45) | Control (n = 45) | P | |
|---|---|---|---|
| Sex | .99 | ||
| Female | 24 | 23 | |
| Male | 21 | 22 | |
| Age, y | 33.0±9.3 | 32.9±8.6 | .94 |
| Education, y | 11.8±2.3 | 13.5±1.8 | <.0005 |
| Depression, BDI Score | 15.6±13.0 | 2.3±2.8 | <.0005 |
| Anxiety, STAI Y1 Score | 33.1±9.8 | 27.0±7.4 | .002 |
| Cigarette smoking | |||
| Smokers, n | 41 | 23 | <.0005 |
| Pack-years tobacco (smokers only) | 11.7±11.4 | 9.7±7.9 | .42 |
| Fagerström Score (smokers only) | 3.4±2.1 | 3.6±2.1 | .78 |
| Methamphetamine use | |||
| Duration of use, y | 11.1±7.8 | 0±0 | — |
| Duration of heavy use, y | 6.7±6.4 | 0±0 | — |
| Current use, g/wk | 2.0±1.4 | 0±0 | — |
| Marijuana use | |||
| Marijuana users, n | 27 | 4 | <.0005 |
| Current use, d/month | 5.5±9.2 | 0.2±0.8 | <.0005 |
Shown are numbers of participants or group means±SDs. P values are for Χ2 (sex, number of smokers, number of marijuana users) or 2-way independent t tests (all other variables), unless otherwise indicated for comparisons of the full methamphetamine to the full control sample.