Effects of craving and DRD4 VNTR genotype on the relative value of alcohol: an initial human laboratory study

Table 2 Associations between craving, DRD4 VNTR genotype, and the interaction with the relative value of alcohol.

Variable	B	SE B	β	R ²
Craving Model				0.15
Craving	0.007	0.003	.38*
Combined Model				0.36
Craving	-0.015	0.008	-0.86
DRD4 VNTR Genotype	-0.767	0.387	-0.77
Craving × Genotype Interaction	0.018	0.007	1.70**

Regression coefficient estimates for the craving model including only craving, and for the combined model including craving, DRD4 VNTR genotype, and the interaction term with the relative value of alcohol as the dependent variable. Unstandardized (± SE) and standardized beta weights are provided, with the total variance accounted for by the model (R²) and statistical significance; * p < .05, ** p < .01.

ISSN: 1744-9081