Trends and correlates of the sex distribution among U.S. assisted reproductive technology births.


Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia. Electronic address: [Email]


To assess national trends in the sex distribution of live-born infants in the assisted reproductive technology (ART) and general population and to identify factors correlated with offspring sex.


Sex distribution,in vitro fertilization,preimplantation genetic diagnosis and screening (PGD/PGS),