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
C
T
Transmitted
50
49
40
55
90
104
Non-transmitted
χ2, df (P-value)
0.01, 1 df (0.919)
2.38, 1 df (0.123)
1.01, 1 df (0.315)