Table 1.
Demographic and substance use characteristics of participants
| Binge drinkers (n=29) |
Controls (n=30) |
||||
|---|---|---|---|---|---|
| Females | Males | Females | Males | ||
| M (SD) (n=14) | M (SD) (n=15) | M (SD) (n=15) | M (SD) (n = 15) | ||
| Demographics | Agebe (range, 16 to 19 years) | 17.81 (1.01) | 18.59 (0.56) | 18.02 (1.08) | 17.89 (1.15) |
| Race (% Caucasian) | 71% | 87% | 80% | 67% | |
| Family history of alcoholism density (range, 0–2) | 0.39 (0.62) | 0.35 (0.56) | 0.18 (0.35) | 0.32 (0.58) | |
| Hollingshead Index of Social Position score | 28.21 (15.08) | 26.33 (19.08) | 24.73 (12.50) | 29.33 (15.06) | |
| Body mass Indexe | 20.86 (2.82) | 24.25 (2.61) | 22.69 (4.99) | 22.13 (4.19) | |
| Pubertal Development Scale total | 19.00 (8.2) | 18.33 (1.40) | 18.93 (1.07) | 17.80 (1.86) | |
| Years of education completedbe | 11.29 (0.91) | 12.13 (6.40) | 11.53 (1.25) | 11.27 (0.96) | |
| Substance use | Peak drinks on an occasion, past 3 monthsabcde | 6.43 (2.77) | 12.10 (3.81) | 0.00 (0.00) | 0.07 (0.26) |
| Estimated peak BAC, past 3 monthsabc | 0.26 (0.10) | 0.28 (0.10) | 0.00 (0.00) | 0.00 (0.00) | |
| Lifetime alcohol use occasionsabc | 102.29 (78.94) | 66.66 (43.82) | 0.07 (0.26) | 0.13 (0.35) | |
| Average no. drinks per drinking day, past monthabc | 2.36 (2.68) | 4.67 (3.37) | 0.00 (0.00) | 0.07 (0.26) | |
| Days since last alcohol use | 24.85 (22.57) | 17.13 (13.80) | n/a | n/a | |
| Tobacco cigarettes per day | 0.07 (0.27) | 0.00 (0.00) | 0.00 (0.00) | 0.00 (0.00) | |
| Lifetime marijuana use occasionsbc | 16.93 (33.54) | 3.67 (4.13) | 0.00 (0.00) | 0.07 (0.28) | |
| Marijuana use days per month, past 3 monthsabc | 0.50 (0.90) | 0.38 (0.65) | 0.00 (0.00) | 0.00 (0.00) | |
| Lifetime other drug use occasionscde | 5.71 (8.15) | 0.67 (1.29) | 0.00 (0.00) | 0.00 (0.00) | |
| NP measures | Complex Figure copy accuracy | 29.21 (3.10) | 28.86 (3.38) | 30.59 (2.76) | 28.33 (3.07) |
| Complex Figure delay accuracy | 21.17 (5.40) | 20.50 (5.73) | 20.22 (5.69) | 19.23 (4.79) | |
| WAIS-III Digits forward | 10.53 (2.00) | 11.07 (2.66) | 10.83 (1.83) | 10.83 (1.64) | |
| WAIS-III Digits backward | 6.80 (1.52) | 8.00 (3.15) | 7.25 (2.15) | 7.23 (1.99) | |
| D-KEFS Color Word Interference Cond 3 time (s) | 46.00 (8.09) | 44.09 (11.03) | 43.38 (10.62) | 45.38 (7.83) | |
| D-KEFS Towers Total Achievement Score | 19.20 (3.99) | 18.04 (3.70) | 19.41 (2.80) | 18.19 (3.18) | |
| WRAT-3 Reading standard score | 107.43 (5.77) | 112.00 (8.20) | 108.14 (7.40) | 107.54 (13.80) | |
| Cortical thickness | Left frontal pole (mm)ae | 3.24 (0.19) | 2.99 (0.26) | 3.00 (0.23) | 3.12 (0.34) |
| Left pars orbitalis (mm)be | 2.86 (0.13) | 2.72 (0.17) | 2.76 (0.17) | 2.84 (0.19) | |
| Left medial orbital frontal gyrus (mm)b | 2.60 (0.12) | 2.53 (0.15) | 2.55 (0.15) | 2.64 (0.15) | |
| Left rostral anterior cingulate (mm)bde | 3.14 (0.24) | 2.83 (0.27) | 3.10 (0.18) | 3.03 (0.21) | |
All NP scores are raw values, unless otherwise noted. For the full sample, ethnicity was 12% Latino; race was 76% Caucasian, 16% multiracial, 3% African-American, 3% Asian, and 2% Native American
BAC blood alcohol concentration; D-KEFS Delis–Kaplan Executive Function System, NP neuropsychological; WAIS-III Wechsler Adult Intelligence Scale, 3rd edition, WASI Wechsler Abbreviated Scale of Intelligence, WRAT-3 Wide Range Achievement Test, 3rd edition
a
Female binge drinkers ≠ female controls, p<.05
b
Male binge drinkers ≠ male controls, p<.05
c
Binge drinkers ≠ controls, p<.05
d
Female ≠ male, p<.05
e
Female binge drinkers ≠ male binge drinkers, p<.05