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Table 3 Comparisons of allele frequencies for VKORC1 G-1639A and CYP2C9 A1075C

From: A PCR method for VKORC1 G-1639A and CYP2C9 A1075C genotyping useful to warfarin therapy among Japanese

Allele frequency VKORC1 c.-1639G > A (rs9923231) CYP2C9 c.1075A > C (rs1057910)
  G A A C
Nagoya citizen 0.085 0.915 0.979 0.021
HapMap projects     
   African 0.978 0.022 1.000 0.000
   Caucasian 0.602 0.398 0.942 0.058
   Chinese 0.058 0.942 0.953 0.047
   Japanese 0.099 0.901 0.977 0.023
Japanese in Shizuoka area     
Yoshizawa, et al. 2009 0.082 0.918 0.979 0.021
  1. CYP = Cytochrome P450, VKORC1 = Vitamin K epoxide reductase complex, subunit 1.