Table 1.
Characteristics of research subjects
| Group | Entire sample(data on BIS-11) |
Subsample(data on BIS-11 and BP) |
||
|---|---|---|---|---|
| HC (n = 66) | MA (n = 51) | HC (n = 30) | MA (n = 22) | |
| Sex (M/F) | 34/32 | 30/21 | 16/14 | 13/9 |
| Age (year) | 31.3 ± 8.3 | 33.6 ± 8.8 | 34.9 ± 8.9 | 35.6 ± 8.4 |
| Number of smokers/group | 35/66 | 46/51* | 11/30 | 19/22* |
| Duration of MA abuse(year) | N/A | 12.5 ± 7.42 | N/A | 14.6 ± 8.2 |
| Days of MA abuse inlast 30 d | N/A | 21.6 ± 8.18 | N/A | 20.4 ± 8.3 |
| Intensity of MA abuse(g/week) | N/A | 3.3 ± 4.48 | N/A | 3.0 ± 3.2 |
Data are given as mean ± SD, except for sex and smoking status. *Significant group difference, p < 0.05. HC, Healthy controls; MA, methamphetamine; M, male; F, female.