Table 1. Descriptive variables.

Variables	Alcoholics	Controls
N	15	22
Gender Distribution	11 males	12 males
	4 females	10 females
Race	8 Caucasian	13 Caucasian
	5 African American	7 African American
	2 Other	2 Other
Age (y)	44±14	36±14
Weight (kg)	82±12	81±18
Body Mass Index (kg/m2)	27.3±3.7	26.4±4.7
Days sober before PET scan	4.8±1.6	N/A
Age of onset of heavydrinking (y)	26.9±10.6	N/A
Lifetime Alcohol drinking (kg)	383±343	3.5±4.8*

^*p<0.001, data available for 21 controls.