Table 1. Participant Demographic and Substance Use Characteristics.

	Heavy Drinkers (n = 23) M (SD) or % [range]	Light Drinkers (n = 33) M (SD) or % [range]	p value
Age (range 18 – 20)	18.9 (0.63)	18.7 (0.42)	0.072
Female	52.2%	60.6%	0.530
Caucasian	74.3%	60.0%	0.918
Family history negative for alcoholism	56.5%	72.7%	0.208
Past mood or anxiety disorder	17.4%	6.1%	0.177
Spielberger State-Trait Anxiety Inventory T-scorea,b	48.7 (11.1)	49.1 (12.5)	0.91
	[30 – 68]	[30 – 76]
Beck Depression Inventory total scorea	3.3 (4.9)	2.6 (3.6)	0.61
	[0 – 19]	[0 – 12]
Lifetime drinks	152.0 (216.3)	24.2 (26.8)	0.01
	[10 – 1000]	[0 – 100]
# weeks drinking, past 6 months	13.0 (7.4)	2.3 (2.6)	< 0.001
	[2 – 26]	[1 – 10]
Drinking days/week, past 6 months	3.5 (1.7)	1.1 (1.4)	< 0.001
	[1 – 7]	[2 – 5]
Drinks/day, past 6 months	6.7 (3.2)	2.1 (2.6)	< 0.001
	[2 – 15]	[0 – 10]
Drinks/week, past 6 months	22.3 (15.2)	4.1 (5.0)	< 0.001
	[5 – 72]	[0 – 14]
Current alcohol dependence	39.1%	0.0%	< 0.001
Current alcohol abuse	91.3%	0.0%	< 0.001

^aData available for 16 heavy drinkers and 29 light drinkers

^bNormed for college students