Overall, when adjusted separately for female age and BMI or FSH, AMH, infertility type, duration of infertility, infertility diagnosis, TMC, medications, endometrium size, and dominant follicle size, compared with the <6 months interval group, the live birth rate of the >12 months group significantly decreased separately by 50% [adjusted RR = 0.50, 95%CI (0.32–0.75)] and 60% [adjusted RR = 0.40, 95% CI (0.19–1.40)]. Here, BRD2 is linked to Infertility.