State Clinics and National Summary
Data provided by U.S. clinics that use assisted reproductive technology
(ART) to treat infertility are a rich source of information about the
factors that contribute to a successful ART treatment—the delivery of a
live-born infant. Pooling the data from all reporting clinics provides
an overall national picture that could not be obtained by examining data
from an individual clinic. A woman’s chances of having a pregnancy and a live birth by using ART are
influenced by many factors, some of which are patient-related and outside a
clinic’s control (e.g., the woman’s age, the cause of infertility). Because
the national data set includes information on many of these factors, it can
give potential ART users an idea of their average chances of success.
Average chances, however, do not necessarily apply to a particular
individual or couple. People considering ART should consult their physician
to discuss all the factors that apply in their particular case.
The data for this national report come from the 426 fertility clinics in
operation in 2006 that provided and verified data on the outcomes of all ART
cycles started in their clinics. The 138,198 ART cycles performed at these
reporting clinics in 2006 resulted in 41,343 live births (deliveries of one
or more living infants) and 54,656 infants.
The national report consists of graphs and charts that use 2006 data to
answer specific questions related to ART success rates. These figures are
organized according to the type of ART procedure used. Some ART procedures
use a woman’s own eggs, and others use donated eggs or embryos. (Although
sperm used to create an embryo also may be either from a woman’s partner or
from a sperm donor, information in this report is presented according to the
source of the egg.) In some procedures, the embryos that develop are
transferred back to the woman (fresh embryo transfer); in others, the
embryos are frozen (cryopreserved) for transfer at a later date. This report
includes data on frozen embryos that were thawed and transferred in 2006.
The national report has five sections:
- Section 1 (Figures 1 through
4) presents information from all ART procedures reported.
- Section 2 (Figures 5
through 41) presents information on the ART cycles that used only fresh
embryos from nondonor eggs or, in a few cases, a mixture of fresh and
frozen embryos from nondonor eggs (99,199 cycles resulting in 80,313
transfers).
- Section 3 (Figures 42 and 43)
presents information on the ART cycles that used only frozen embryos
from nondonor eggs (22,023 cycles resulting in 20,057 transfers).
- Section 4 (Figures 44 through
48) presents information on the ART cycles that used only donated eggs
or embryos (16,976 cycles resulting in 15,505 transfers).
- Section 5 (Figures 49 through
64) presents trends in the number of ART procedures and success rates
from 1996 through 2006.
The 2006 national
summary table, is based on data from all clinics included in this
report and the
individual
clinic tables. See an explanation of how to read these tables.
Previous ART Reports
Implementation of the Fertility
Clinic Success Rate and Certification Act of 1992
Page last reviewed: 12/3/08
Page last modified: 12/3/08
Content source: Division
of Reproductive Health,
National Center for Chronic Disease
Prevention and Health Promotion