After controlling for female age, BMI, AMH, AFC, infertility duration, infertility type, infertility factors, fertilization method, administration on trigger day, luteal support, number of transferred embryos and the moderate or severe OHSS rate, the E2/P ratio on OPU + 7 was positively associated with positive hCG (adjusted OR = 1.01; 95% CI, 1.01–1.02; P < 0.0001), clinical pregnancy (adjusted OR = 1.01; 95% CI, 1.00–1.01; P = 0.0067) and live birth (adjusted OR = 1.01; 95% CI, 1.00–1.01; P < 0.001) (Table 3). This evidence concerns the gene AMH and Infertility.