The baseline characteristics included female age, BMI, infertility type, basal AMH, basal FSH, basal E2, duration of infertility, AFC, COS protocols, Gn dosage, Gn duration, E2 level, LH level and P level on hCG trigger day, EMT, No. of oocytes retrieved, No. of embryos transferred, embryo type and embryo quality. Here, BRD2 is linked to Infertility.