From: Association study of promoter polymorphisms at the dopamine transporter gene in Attention Deficit Hyperactivity Disorder
UK samples Allele
Taiwanese samples Allele
Combined samples Allele
A
T
Transmitted
37
43
45
81
82
124
Non-transmitted
χ2, df (P-value)
0.45, 1 df (0.502)
10.43, 1 df (0.001)
8.56, 1 df (0.003)