Table 1.
Group Characteristics
| Gender | MD (19M, 6F) |
CTL (10M, 7F) |
|---|---|---|
| M (SD) | M (SD) | |
| Demographics | ||
| Age (in years) | 38.84(9.16) | 38.77(9.40) |
| Education (in years) | 13.56(1.12) | 15.88(2.18) |
| Drug Use | ||
| Lifetime Sessions of Methamphetamine Use | 14912.78(18686.76) | -- |
| Age of First Methamphetamine Use | 22.26(7.29) | -- |
| # of Participants with Past Cannabis Use | 23* | 10** |
| Lifetime Sessions of Cannabis Use | 4413.61(6212.24) | 70.63(174.01) |
| Age of First Cannabis Use | 13.78(5.46) | 18.17(5.19)□ |
| % Lifetime Cannabis Abuse | 33.33%≠ | 5.88% |
| % Lifetime Cannabis Dependence | 19.05%≠ | -- |
| # of Participants with Past Cocaine Use | 21* | 2** |
| Lifetime Sessions of Cocaine Use | 2918.96(5320.57) | 0.25(0.68) |
| Age of First Cocaine Use | 19.95(3.72) | 19.00(1.41) |
| % Lifetime Cocaine Abuse | 38.09% | -- |
| % Lifetime Cocaine Dependence | 38.09% | -- |
| % Regular Tobacco Use | 100% | 29.41% |
| % Lifetime Tobacco Dependence | 57.14%≠ | -- |
| % Lifetime Alcohol Abuse | 80.95%≠ | 5.88% |
| % Lifetime Alcohol Dependence | 66.67%≠ | -- |
| Questionnaires | ||
| Barratt Impulsivity Scale Total | 74.31(7.88) n=16 | 51.19(7.76) n=16 |
| Sensation Seeking Scale Total | 21.78(5.20) n=18 | 16.81(6.22) n=16 |
Note: MD = methamphetamine dependent subjects. CTL = control subjects.
*
Use data based on self-report from n=23
**
Use data based on self-report from n=16
□
Use data based on self-report from n=6
≠
Use data based on self-report from n=21