highly significantp < 0.00001
Hardy–Weinberg equilibrium analysis for rs2904880 revealed highly significant deviation from expected genotype counts ( χ 2 = 161.4, df = 1, p < 0.00001), characterized by a marked heterozygote deficit (observed 271 [22.66%] vs. expected 428.36 [35.82%]) and a reciprocal homozygote excess.