Table 1. Group Comparison on Clinical Variables at Baseline.

Variables	Treatment group (n = 17)Mean ± SD	TAU group (n = 17)Mean ± SD	t value	P value
Age of onset (years)	18.59 ± 2.50	19.65 ± 3.04	−1.11	0.276
Age of onset of dependence (years)	23.65 ± 2.29	24.29 ± 2.26	−0.83	0.413
Total years of alcohol use	14.71 ± 5.88	13.94 ± 6.05	0.37	0.711
Total years of alcohol dependence	9.76 ± 4.94	9.18 ± 5.02	0.34	0.733
Externalizing traits	13.59 ± 3.83	10.94 ± 4.34	1.89	0.068
SADDQ scores	21.71 ± 8.33	21.88±11.39	−0.05	0.959

SADDQ: Short Alcohol Dependence Data Questionnaire, SSAGA-II: Semi-Structured Assessment for Genetics of Alcoholism—version II for externalizing trait.