Contribution of Assisted Reproductive Technology to Overall Births by Maternal Age in the United States, 2012-2014

Assisted reproductive technology (ART) contributes to 1.6% of births in the United States,1 and utilization varies across several dimensions, including patient age.2 Delayed childbearing and age-related fertility declines may be associated with increasing ART use. Also, success rates for patients using their own oocytes decline with increasing maternal age, leading to higher use of donated oocytes by older women.2 The proportion of ART births among US multiple births by maternal age has been reported3; however, to our knowledge, age-specific estimates of the contribution of ART to total US births have not been previously published.