Univariate and multivariate regression analyses using age, BMI, basal FSH, endometrial thickness, infertility factor, number of IVF/ICSI attempts, number of previous ET cycles, and the luteal phase support drug used in the three different luteal phase support protocols were not independent factors of the live birth rate during the transfer cycle (Table 5). This evidence concerns the gene BRD2 and Infertility.