Table 1.
Demographic and substance abuse characteristics
| Descriptive statistics | ||
|---|---|---|
| MDIs | NCs | |
| Gender (men) | 36/36 | 24/24 |
| Age | 30.55 ± 6.43 | 30.75 ± 4.63 |
| Education (years) | 14.36 ± 2.79 | 16.58 ± 2.5 |
| Duration of meth abstinence (months) | 1–6 | – |
| Duration of meth dependence (years) | 8.35 ± 4.07 | – |
| Marital status (married) | 36/25 | 24/7 |
| Number of subjects with a history of opium abuse | 36/20 | 24/0 |
| Number of subjects with a history of alcohol abuse | 36/23 | 24/0 |
| Number of subjects with a history of heroin abuse 30/2 | 36/5 | 24/0 |
| Number of subjects with a history of cigarette smoking | 36/35 | 24/2 |