TNF and polycystic ovary syndrome: The genotype distributions and allele frequencies of the SNPs located in the TNF-α rs1800629 G>A indicated no deviation in the Hardy–Weinberg equilibrium (HWE) in the polycystic ovary syndrome case group (all p-value > 0.05) (χ2 = 0.002, p ≤ 0.96) or in the matched healthy control group (p > 0.05) (χ2 = 0.20, p ≤ 0.64).