Table 1.
Demographic and alcohol use characteristics of the sample
| Variable | Alcohol Use Disorder (n = 23) No. (%) of participants / Mean (SD) |
Light Drinker (n = 20) No. (%) of participants / Mean (SD) |
p |
|---|---|---|---|
| Gender (male) | 18 (78.3%) | 12 (60.0%) | 0.193 |
| Smoking Status (non-smoker) | 22 (95.7%) | 20 (100.0%) | 0.345 |
| Race (Caucasian) | 20 (87.0%) | 15 (75.0%) | 0.469 |
| Age | 27.00 (5.98) | 24.30 (3.16) | 0.065 |
| Education (no. of years) | 14.30 (2.12) | 15.30 (1.26) | 0.068 |
| Alcohol Dependence Scale | 11.95 (5.13) | 2.80 (2.88) | <0.001 |
| # Heavy drinking days (past 14) | 7.81 (3.20) | 0.47 (0.77) | <0.001 |
| Drinks per drinking day | 7.23 (3.37) | 2.24 (1.17) | <0.001 |
| Days since last drink | 1.00 (0.00) | 5.10 (7.64) | 0.027 |
| OCDS (total) | 4.09 (3.13) | 0.50 (1.00) | <0.001 |
| Alcohol Urge Questionnaire | 18.35 (9.11) | 10.30 (2.43) | <0.001 |
| Alcohol Withdrawal Symptoms Checklist | 3.39 (4.69) | 0.00 (0.00)a | <0.001 |
Note:
a
The Alcohol Withdrawal Symptoms Checklist was only administered to the subsample of n=12 Light Drinker participants who were invited to complete a second scan. “Smoker” was defined as an individual who reports smoking ≥ 10 cigarettes/day. OCDS scores were calculated following removal of alcohol consumption items (i.e., items 7 and 8). Significant p values (i.e., p < 0.05) have been bolded.