From: Association study between a polymorphism at the 3'-untranslated region of CLOCK gene and attention deficit hyperactivity disorder
UK samples Allele
Taiwanese samples Allele
Combined samples Allele
T
C
Transmitted
61
46
37
18
98
64
Non-transmitted
χ2 , df (P-value)
2.110, 1df (0.146)
6.701, 1df (0.010)
7.136, 1df (0.008)