LH, E2, and PRL levels were significantly higher in PCOS with DOR compared with PCOS without DOR; among them, LH levels were discrete, but still had statistical significance (10.76 vs. 15.66 IU/L, 163.60 vs. 460.38 pmol/L, and 12.92 vs. 14.29 μg/L, respectively). The gene discussed is PLOD1; the disease is polycystic ovary syndrome.