Types of infertility and baseline hormone values, including FSH, LH, E2 and PRL, were comparable between the two groups (6.54 ± 1.89 IU/L vs. 6.32 ± 2.04 IU/L, P = 0.31; 4.39 ± 2.05 IU/L vs. 4.85 ± 2.57 IU/L, P = 0.07; 42.38 ± 33.86 pg/ml vs. 48.08 ± 76.54 pg/ml, P = 0.39; 19.87 ± 35.15 ng/ml vs. 16.76 ± 19.48 pg/ml, P = 0.31). Here, PLOD1 is linked to Infertility.