Assisted reproductive technology in the United States: 2000 results generated from the American Society for Reproductive Medicine/Society for Assisted Reproductive Technology Registry

Objective

To summarize the procedures and outcomes of ART initiated in the United States in 2000.

Design

Data were collected electronically using the SART Clinical Outcome Reporting System software and submitted to the American Society for Reproductive Medicine/ Society for Assisted Reproductive Technology Registry.

Participant(s)

Three hundred eighty-three programs submitted data on procedures performed in 2000. Data were collated after November 2000 so that the outcome of all pregnancies established would be known.

Main outcome measure(s)

Incidence of clinical pregnancy, ectopic pregnancy, abortion, stillbirth, and delivery.

Result(s)

Programs reported initiating 99,989 cycles of ART treatment. Of these, 73,406 cycles involved fresh nondonor IVF (46.6% with intracytoplasmic sperm injection ICSI]), with a delivery rate per retrieval of 29.9%; 549 were cycles of gamete intrafallopian transfer, with a delivery rate per retrieval of 24.7%; 763 were cycles of zygote intrafallopian transfer, with a delivery rate per retrieval of 29.9%. The following additional ART procedures were also initiated: 7,581 fresh donor oocyte cycles, with a delivery rate per transfer of 43.7%; 13,083 frozen embryo transfer procedures, with a delivery rate per transfer of 20.4%; 2,721 frozen embryo transfers using donated oocytes or embryos, with a delivery rate per transfer of 23.5%, and 1,200 cycles using a host uterus, with a delivery rate per transfer of 35.8%. In addition, 326 cycles were reported as combinations of more than one treatment type, 41 cycles as research, and 319 as embryo banking. As a result of all procedures, 25,394 deliveries were reported, resulting in 35,345 neonates, of which 35,031 were live born and 314 stillborn.

Conclusion(s)

In 2000, there were more programs reporting ART treatment and a significant (13.5%) increase in reported cycles compared to 1999. In comparable cycle types, overall success rate (deliveries per retrieval) exhibited an actual increase of 0.6%, which represents an increase of 2.2% when compared to the success rate for 1999.