Table 1.

Participant demographic and substance use characteristics

	Binge drinkers (n = 12), M (S.D.) or %	Controls (n = 12), M (S.D.) or %
Age (range 16–18 years)	18.2 (0.8)	17.8 (0.9)
% Female	16.7	33.3
% Caucasian	72.7	66.7
% Family history negativea	91.9	91.9
Parent annual salary (thousands)	118.2 (72.2)	102.9 (82.6)
Vocabulary T-scoreb	55.8 (10)	56.3 (8)
Spielberger State Anxiety T-score	36.2 (4.7)	35.0 (2.9)
Beck Depression Inventory total	2.5 (2.4)	1.5 (2.1)
Child Behavior Checklist,   externalizing T-score	40.8 (10.2)	47.5 (10.1)
Child Behavior Checklist,   internalizing T-score	45.6 (9.3)	46.3 (7.1)
Lifetime drinking episodes**	55.3 (48.0)	1.3 (2.7)
Drinks per month, past 3 months**	21.2 (13.7)	0.0 (0.0)
Drinks per occasion, past 3 months**	10.4 (4.8)	0.0 (0.0)
Drinking days, past month	1.5 (1.1)	0.0 (0.0)
Lifetime alcohol abuse   and dependence criteria*	1.1 (1.3)	0.0 (0.0)
Lifetime marijuana use episodes*	2.1 (3.1)	0.0 (0.0)
Lifetime other drug use episodes	0.8 (2.3)	0.0 (0.0)
Fagerstrom Test for Nicotine   Dependence total (max = 10)	0.0 (0.0)	0.0 (0.0)

^*P < 05.

^**P < 001.

^aNo first-degree biological relative with alcohol or drug abuse or dependence.

^bBased on Wechsler Abbreviated Scale of Intelligence (Wechsler, 1999), age-corrected T-scores (mean = 50, S.D. = 10).