SART data—PGT LBRs per year by age group. The LBR per cycle started under age 38 for the years 2014, 2015 and 2016 were 42.3% (3436/8119), 38.2% (5400/14 140) and 38.9% (7253/18 646), respectively. The LBR per cycle started 38 years and over for the years 2014, 2015 and 2015 and 2016 was 24.3% (1874/7707), 22.1% (2702/12 253) and 19.3% (2905/15 072) respectively. The LBR per egg collection under 38 for the years 2014, 2015 and 2016 was 42.3% (3436/8119), 38.2% (5400/14 140) and 38.9% (7253/18 646), respectively. The LBR per egg collection age 38 and over for the years 2014, 2015 and 2016 was 24.3% (1874/7707), 22.1% (2702/12 253) and 19.3% (2905/15 072), respectively. The LBR per embryo transfer procedure for ages under 38 for the years 2014, 2015 and 2016 was 54.0% (3435/6364), 55.4% (5855/10 576) and 56.3% (72 481/12 887), respectively. The LBR per embryo transfer procedure for ages 38 and over for the years 2014, 2015 and 2016 was 50.7% (1874/3694), 51.1% (2702/5286) and 51.0% (2902/5625), respectively.