IKZF2 and coronary artery disorder: In addition, a previous study found that the IKZF2 rs12619285 (G/A) polymorphism in European populations (G allele frequency, 26%; P=5.4×10−10) and East Asian populations (G allele frequency, 64%; P=0.017) was significantly associated with CHD (21), although there were large allele differences between the European and East Asian populations.