After adjusting for confounding factors including age, education, smoking status, infertility type and the CGG repeats of the other FMR1 allele, there was no significant difference in FSH levels with the change of CGG repeat length at FMR1 allele 1 or 2 (p=0.110, p=0.429, respectively; Figures 3A, C). This evidence concerns the gene BRD2 and Infertility.