FSHB and Infertility: In addition, bE2 (OR = 1.004, 95%CI: 1.002,1.007) and infertility duration (OR = 1.058, 95% CI: 1.023,1.095) were two independent risk factors significantly (P < 0.05) affecting clinical pregnancy rates, and bFSH (OR = 0.975, 95% CI: 0.942,1.009) was an independent risk factor to significantly affect the live birth rate.