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IVF Success Rates
IVF with its improved success rates has brought hope to thousands of couples. For many
people, the dream of having children is not easily attained.
Up to 15% of couples in the United States receive infertility treatment and some will require IVF. Assisted Reproductive
Technologies (ART), including IVF, have been used in the United States
since 1981 to help couples achieve pregnancy.
IVF success rates are reported to the Society for Assisted Reproductive Technology (SART) which
is an organization of ART / IVF providers affiliated with
the American Society for Reproductive Medicine (ASRM).
SART has been collecting ART data and publishing reports
for fertility clinics in the United
States since 1989.
IVF success rates were co-authored by SART,
the Centers for Disease Control & Prevention (CDC)
and RESOLVE, a national consumer organization for infertile
couples for the
first time in 1995. The data for this national report came from
281 fertility clinics that provided information about
the outcomes of all IVF cycles started in their clinics
in 1995.
IVF success rates are influenced by many factors
specific to each couple and include the causes of infertility, female age, previous treatments, and other variables. The national report presents clinic
specific IVF success rates, as well as overall pooled data
from all the clinics reporting. These pooled national
data are useful because they give potential ART patients
an idea of their average chances of IVF success. Average
chances, however, do not necessarily apply to a particular
individual or couple. Couples considering ART should
take into consideration all the factors that apply in
their particular case as well as looking at a particular
clinic's success rates.
A variety
of factors, outside a clinic's control, can affect a couple's
chances of obtaining a pregnancy and a live birth by
using ART. The most significant of these factors are
a woman's
age, and sperm
abnormalities. Additional factors such as immunologic
infertility, smoking (lifestyle issues), the
cause of infertility, and the number of children that
the woman may already have can also significantly
impact the success rates.
For this
reason, some clinics refuse to accept certain complex
cases, or patients over a certain age, that will likely
produce poor success rates. At HRC, we evaluate the
various patient-specific factors that can affect IVF success rates
and advise couples on their likely chance for conception.
We seldom exclude patients from our program based on
their prognosis, but work with couples in partnership
to help them make the best decision.
IVF success rates can be reported in a variety of ways and
statistics are not always simple to interpret. As a
result, it may be difficult to directly compare one
clinic's success rates to another.
Donor egg IVF is an option for many infertile women who have reduced ovarian reserve due to age or other factors. Female fertility naturally declines with age culminating in the menopause and some women experience premature menopause. Women who use a donors eggs usually have the same success rates as the donor's age group. For example, if the eggs from a twenty year old female are used for an IVF cycle in a forty two year old female, the success rates for the cycle compare to the twenty year old age group even though the recipient is in her forties. This assumes their is no male factor infertility and that the recipient is in good general health with a functional uterus.
The severity
of certain cases may affect overall clinic outcomes
and statistics. However, to a certain degree, IVF
success rates are related to the expertise of a clinic's
staff and the quality of its laboratory. HRC is
gratified to report that as a result of its treatments,
several thousand babies have been born to happy parents
across the United States and around the world. Please
review our ART statistics below.
HRC IVF SUCCESS
RATES
REPORTING YEAR: JANUARY 1 - DECEMBER
31, 2005
IVF Success Rates Using Fresh
Embryos - Non Donor
| Fresh
Embryos from Non Donor Eggs |
<=35
YRS |
35-37
YRS |
38-40
YRS |
41+YRS
|
| Number
of cycles |
520 |
330 |
300 |
198 |
| Pregnancy
% |
50% |
47% |
38% |
20% |
| Ongoing
pregnancy % |
48% |
43% |
34% |
15% |
IVF SUCCESS RATES USING FROZEN
EMBRYOS
|
Frozen
Embryo Transfers |
All
Ages Combined |
| Number of frozen
transfers |
396 |
| Pregnancy
% |
42% |
| Ongoing pregnancy
% |
36% |
IVF SUCCESS RATES
USING DONOR EGGS
|
Donor
Eggs |
All
Ages Combined |
| Number
of fresh transfers |
177 |
| Pregnancy
% |
63% |
| Ongoing
Pregnancy % |
60% |
Note: IVF
success rates comparisons
between clinics may not be meaningful because patient
medical characteristics and treatment approaches vary
from clinic to clinic.
Additional ART Links
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