Table 2. DRD4 Genotype Distribution Across Beverage Conditions.

	Alcohol		Placebo		Control		Total
	n	%	n	%	n	%	n	%
7-present	68	43.31	42	33.07	51	36.96	161	38.15
7-absent	89	56.69	85	66.93	87	63.04	261	61.85
Total	157	100	127	100	138	100	422	100