Table 1.
Sample characteristics of study completers and association between sample characteristics and alcohol use severity factor score
| Mean (SD) | Association with alcohol use severity factor score | |
|---|---|---|
| N (%) | ||
| Demographics | ||
| Age | 29.18 (6.57) | r = 0.365, p = 0.002 |
| Sex (N/% Female) | 31 (46%) | F(1,65) = 3.00, p = 0.088 |
| Beck depression inventory-IIe | 8.66 (8.35) | r = 0.423, p < 0.001 |
| Cigarettes per day (past 30 days) | 1.85 (4.31) | r = 0.280, p = 0.022 |
| Alcohol use variables | ||
| Drinks per week (past 30 days) | 22.04 (13.19) | r = 0.650, p < 0.001 |
| Drinks per drinking day (past 30 days) | 5.3 (2.56) | r = 0.424, p < 0.001 |
| Drinking days (past 30 days) | 18.18 (6.45) | r = 0.395, p < 0.001 |
| Binge proportion (past 30 days)a | 0.5 (0.31) | r = 0.428, p < 0.001 |
| ADSd | 11.12 (5.47) | r = 0.741, p < 0.001 |
| AUDITd | 13.43 (5.84) | r = 0.871, p < 0.001 |
| CIWA-Ard | 1.03 (1.37) | r = 0.511, p < 0.001 |
| OCDSd | 8.63 (4.85) | r = 0.866, p < 0.001 |
| PACSd | 9.75 (5.81) | r = 0.779, p < 0.001 |
| Family history positive | 30 (49%) | F(1,59) = 0.4, p = 0.627 |
| DSM-5 AUD variables | ||
| AUD symptoms lifetimeb | 3.96 (2.59) | r = 0.785, p < 0.001 |
| AUDS severity lifetimeb | F(3,63) = 19.36, p < 0.001 | |
| None (0–1 symptoms) | 14 (21%) | |
| Mild (2–3 symptoms) | 16 (24%) | |
| Moderate (4–5 symptoms) | 19 (28%) | |
| Severe (6 + symptoms) | 18 (27%) | |
| AUD age of onset (n = 53)c | 20.72 (3.8) | r = −0.072, p = 0.609 |
| AUD symptoms currentb | 2.43 (2.09) | r = 0.839, p < 0.001 |
| AUD severity currentb | F(3,63) = 40.75, p < 0.001 | |
| None (0–1 symptoms) | 29 (43%) | |
| Mild (2–3 symptoms) | 15 (22%) | |
| Moderate (4–5 symptoms) | 16 (24%) | |
| Severe (6 + symptoms) | 7 (10%) | |
aBinge proportion is the proportion of drinking days that the participant exceeded the NIAAA binge drinking threshold (≥5 drinks for men and ≥4 for women)
bCurrent and lifetime AUD Symptom count and age of onset were from the Structured Clinical Interview for DSM-5
cAge of onset was only available for the 53 participants who met criteria for a lifetime AUD
dADS Alcohol Dependency Scale, AUDIT Alcohol Use Disorder Identification Test, CIWA-Ar Clinical Institute Withdrawal Assessment for Alcohol–Revised, OCDS Obsessive Compulsive Drinking Scale, PACS Penn Alcohol Craving Scale
eBeck Depression Inventory-II scores were square-root transformed to improve normality for analyses