Table 2.

Frequency of the DAT1 alleles.

Alleles	Control	ADHD	Total
	(N = 72)	(N = 49)	(N = 121)
DAT1*9	10 (13.9%)	4 (8.2%)	14 (11.6%)
DAT1*10	61 (84.7%)	44 (89.8%)	105 (86.8%)
DAT1*11	1 (1.4%)	1 (2%)	2 (1.6%)