Compared with the controls, group of PCOS subjects had a higher body mass index [BMI, 24.22(21.47–27.73) kg/m2 vs 21.88(19.95–24.12) kg/m2, P < 0.001], a higher testosterone level [T, 43.73(31.49–54.15) ng/dl vs 27.65(19.98–38.18) ng/dl, P < 0.001] and a higher luteinizing hormone level [LH, 9.36(6.12–13.39) IU/L vs 4.70(3.51–6.01) IU/L, P < 0.001]. Here, PLOD1 is linked to polycystic ovary syndrome.