Table 1.
Demographic information of the CUD and control groups. F = female, M = male, L = left, R = and right.
| Parameter | CUD (n = 23) | Control (n = 23) |
|---|---|---|
| Age [years] mean and standard deviation (range) | 28.2 ± 3.5 (22–33) | 28.7 ± 3.7 (22–35) |
| Sex | 6 F, 17 M | 7 F, 16 M |
| Handedness | 23 R, 0 L | 23 R, 0 L |
| Education [years] mean and standard deviation (range) | 14.6 ± 1.8 (11–17) | 14.6 ± 2.1 (11–17) |
| Total number of alcohol drinks in the past 7 days (range) | 8.1 ± 8.2 (0–25) | 7.5 ± 8.1 (0–25) |
| Total number of any tobacco used in the past 7 days (range) | 22.9 ± 27.4 (0–75) | 18.9 ± 25.3 (0–70) |
| Number of subjects used cocaine more than 10 times | 5 | 2 |
| Number of subjects used illicit drugs more than 10 times | 3 | 1 |
| Number of subjects used hallucinogens more than 10 times | 5 | 1 |
| Number of subjects used opiates more than 10 times | 5 | 1 |
| Number of subjects used sedatives more than 10 times | 5 | 1 |
| Number of subjects used stimulants more than 10 times | 5 | 1 |
| Number of subjects with 1st marijuana use earlier than 17 years old | 16 | N/A |