Table 3.
Demographic characteristics and self-reported use of cocaine and other psychoactive drugs for study 2
| Sample | Controls | Recreational users |
|---|---|---|
| N (M:F)a | 20 (16:4) | 20 (17:3) |
| Age (years)a | 22.9 (2.0) | 24.0 (4.3) |
| Raven IQa | 111.8 (4.4) | 110.6 (3.8) |
| Monthly drinksa | 42.2 (32.6) | 51.3 (42.6) |
| Lifetime exposure (MDMA)** | 6.8 (5.0) | 68 (114) |
| Monthly exposure (joints)* | 4.8 (3.8) | 16.2 (24.0) |
| Lifetime exposure (GHB)a | 0 | 0.26 (0.8) |
| Lifetime exposure (grams speed)* | 0 | 4.0 (12.3) |
| Lifetime exposure psilocybina | 0 | 0 |
| Highest regular frequency (times per month) | 0 | 6.0 (4.4) |
| Highest amount in a 12-h period (peak; grams) | 0 | 2.0 (1.5) |
| Monthly exposure (grams cocaine) | 0 | 2.8 (2.0) |
| Lifetime exposure (grams cocaine) | 0 | 140 (170) |
| Duration of use in years | 0 | 5 (3.2) |
| Monthly money cocaine (euro) | 0 | 103 (48) |
Standard errors are presented within parentheses
Raven IQ IQ measured by means of the Raven’s Standard Progressive Matrices, Monthly drinks monthly number of standard alcoholic drinks
aNonsignificant difference
*p < 0.05
**p < 0.01