For multivariate linear regression analysis, the number of high-quality embryos was the dependent variable, while the number of Gn days, total Gn doses, duration of infertility, BMI, number of collected oocytes, basal levels of FSH, LH, E2, P, and T, numbers of 2PN, pregnancy outcome, LH, E2, and P levels on the day of hCG, and LH levels on the day of antagonist addition were independent variables (Table 4; R = 0.678, R2 = 0.460). The gene discussed is PLOD1; the disease is Infertility.