Table 1.
Demographic data of study groups: mean ± SD/frequency count
| Demographic variable | Controls (n = 18) | AUD (n = 18) | p value |
|---|---|---|---|
| Sex (male/female) | 10/8 | 13/5 | 0.49 |
| Age (years) | 48.8 ± 8.81 | 53.2 ± 8.76 | 0.13 |
| Handedness (right/left) | 18/0 | 15/3 | 0.23 |
| Ethnicity (Caucasian/African/American/Asian) | 10/2/6 | 13/4/1 | 0.1 |
| Education (years) | 17.2 ± 2.57 | 12.7 ± 1.82 | < .0001 |
| Socioeconomic status | 19.72 ± 11.46 | 41.28 ± 12.8 | < .0001 |
| ‡WTAR predicted IQ | 104.23 ± 6.2 | 96.7 ± 8.34 | 0.01 |
| ‡Beck Depression Index | 4 ± 4.08 | 13.6 ± 11.12 | < .0001 |
| AUD onset age | — | 21.83 ± 6.91 | — |
| Lifetime alcohol consumption (kg) | 61.4 ± 93.2 | 1567.67 ± 1165.86 | < .0001 |
| Days since last drink | — | 105.26 ± 102.63 | — |
| CIWA total score | — | 27.68 ± 15.5 | — |
| DSM-5 AUD total score | — | 9.37 ± 2.26 | — |
| Smoker (never/past/current) | 18/0/0 | 4/5/9 | < .0001 |
| In-scanner head motion (mm) | 0.1 ± 0.04 | 0.18 ± 0.09 | .0003 |
‡
Some subjects in both groups had missing data on WTAR-IQ and Beck Depression Index
t tests were used on continuous variables (e.g., age); χ2 tests were used on nominal variables to assess group differences
Bold indicates significant differences between groups