Table 1.

Demography of Study Subjects

	Unaffected		Alcohol dependence (by DSM-IV)		Total
n	577		472		1049
Age (year)	39.30 ± 0.55		39.6 ± 0.61		39.45 ± 0.41
Gender (M/F)	274/303	0.90 ratio	237/235	1.01 ratio	511/538	0.95 ratio
Psychiatric comorbidity (by DSM-IIIR)
ASPD	49	8.49%	53	11.23%	102
Major depression	92	15.94%	84	17.80%	176
Bipolar I	3	0.52%	9	1.91%	12
Bipolar II	6	1.04%	12	2.54%	18
OCD	7	1.21%	14	2.97%	21
Social phobia	15	2.60%	23	4.87%	38
Panic disorder	13	2.25%	22	4.66%	35
Cannabis dependence*	49	8.49%*	191	40.47%*	240
Cocaine dependence	99	17.16%	75	15.89%	174

ASPD, antisocial personality disorder; OCD, obsessive compulsive disorder.

^*p = 1.56E-33.