Table 1.
Demographic, Substance Use, and Characteristics of Study Participants
| |
Group, mean±SD |
|
|
|
|---|---|---|---|---|
| Characteristics | Cannabis users (n=12) | Controls (n=13) | t-value (df=23) | p-value |
| Age (year) | 19.33±0.98 | 21.62±3.84 | −1.93 | 0.07 |
| Education (year) | 12.82±0.75 | 13.91±1.88 | −1.81 | 0.09 |
| Sex (% of male) | 12 (100%) | 13 (100%) | ||
| Handedness (% of right) | 11 (92%) | 13 (100%) | ||
| Drinks/week | 5.58±5.32 | 1.69±4.66 | 1.95 | 0.06 |
| PAS | 2.08±1.98 | 0.62±1.98 | 1.28 | 0.10 |
| Total SPQ score | 12.58±9.92 | 5.46±5.77 | 2.18 | 0.02 |
| ANART score | 13.58±4.06 | 14.58±4.96 | −0.24 | 0.41 |
| BIS: Attention Imp | 17.83±5.10 | 14.69±3.07 | 0.88 | 0.19 |
| BIS: Motor Imp | 21.42±3.23 | 19.69±3.25 | 0.30 | 0.11 |
| BIS: NonPlanning Imp | 24.00±3.74 | 20.92±5.48 | 0.26 | 0.11 |
| Cannabis use | ||||
| Age of first use | 16.00±2.37 | N/A | ||
| Duration (year) | 3.36±2.50 | N/A | ||
| Use in past week | 5.00±1.71 | N/A | ||
PAS, Perceptual Aberration Scale; SPQ, schizotypal personality questionnaire; ANART, American National Adult Reading Test; BIS, Barrett Impulsivity Scale Factor Score; Imp, impulsivity; N/A, not applicable.