KDR and type 2 diabetes mellitus: The genotype distributions in both patients with T2DM and controls were in Hardy-Weinberg equilibrium for the KDR gene polymorphism [rs2071559: T2DM (genotype frequencies: CC genotype 22.0%, CT genotype 51.9%, and TT genotype 26.1%; χ2 = 0.97; p = 0.33) and controls (genotype frequencies: CC genotype 30.0%, CT genotype 48.0%, and TT genotype 22.0%; χ2 = 0.63; p = 0.23)].