After controlling for female age, BMI, AFC, AMH, duration of infertility, infertility type, infertility diagnosis, fertilization method, serum FSH, LH, E2 and P levels on the 1st day of stimulation and serum LH and E2 levels on the 4th day and 6th day of stimulation, there were significant differences in total dosage of MPA and number of follicles with diameter more than 16 mm on trigger day (P < 0.001) (Table 5). This evidence concerns the gene BRD2 and Infertility.