PLOD1 and polycystic ovary syndrome: The levels of serum LH (p = 0.013), E2 (p = 0.029), total testosterone (p < 0.001), FINS (p < 0.001), TG (p < 0.001), and HOMA-IR (p < 0.001) were significantly higher in patients with PCOS compared to the control group.