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. Author manuscript; available in PMC: 2010 Nov 1.
Published in final edited form as: Am J Addict. 2009 Nov–Dec;18(6):494–499. doi: 10.3109/10550490903206023

Table 1.

Demographic and Clinical Characteristics of Alcoholics and Comparison Subjects

Comparison
Group
(n=122)		 Alcohol-Dependent
Group
(n=93)		 Statistic P-value
Family History Positive 58 (47.5%) 36 (38.7%) χ2 =1.67, df=1 P=.20
European American 105 (86.1%) 87 (93.5%) χ2 =3.09, df=1 P=.079
Male 59 (48.4%) 60 (64.5%) χ2 =5.57, df=1 P=.018
Current smoker 6 (4.9%) 30 (32.3%) χ2 =28.3, df=1 P<.001
Age [mean yr (SD)] 25.9 (6.0) 47.7 (9.1) F(1,213)=447.56 P<.001
Education [mean yr (SD)] 15.7 (2.3) 14.9 (2.4) F(1,213)=6.53 P=.011
Number of drinking days* 3.9 (4.8) 21.8 (8.2) F(1,213)=399.22 P<.001
Number of standard drinks* 9.4 (11.6) 135.4 (83.3) F(1,213)=272.56 P<.001
*

During the 30 days prior to testing