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Mean values on demographic measures. Standard deviations are in parentheses.
| Group |
||
|---|---|---|
| Controls (n = 15) |
Cannabis users (n = 17) |
|
| Age (years) | 29.6 (7.6) | 33.3 (8.2) |
| Education (years) | 14.9 (2.5) | 13.7 (1.8) |
| Estimated IQ | 110 (10.9) | 101.2 (13.8) |
| Drinks/week | 2.9 (4.2) | 4.3 (6.3) |
| Cigs./day | 8.3 (10.1) | 12.2 (8.7) |
| Age at first cannabis use (years) | 18.6 (5.0) | 16.4 (5.4) |
| Years of cannabis use | - | 13.2 (9.0) |
