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Success Rates

There are many factors that go in to determining a clinic's success rates. A clinic that provides personalization of their treatment protocols combined with expert embryology services and advanced technology can realize higher success rates. California IVF: Davis Fertility Center uses our professional experience and state of the art laboratory facility to maximize our pregnancy rates. Some clinics can achieve higher pregnancy rates by increasing the numbers of embryos transferred or by selecting out patients with lower chances of getting pregnant. California IVF does not agree with either of these practices. While we pride ourselves on our excellent pregnancy rates, caution must be used not to compare clinics based solely on their pregnancy rates. More information on this topic is available through ASRM by clicking here.

We constantly monitor the outcomes of our treatments in an effort to improve our success. Delivering outstanding pregnancy rates with compassionate and individualized service will help set us apart from other clinics. We take great pride in our family atmosphere and feel this is backed up by impressive results. Many factors must be considered when choosing a fertility clinic. The table below presents the clinical pregnancy rates for our clinic during the 2007 calendar year. Additional information regarding this table can be found below.

January 2007 through December 2007
Age Group
Non-Donor Eggs (Own Eggs) <35 35-37 38-40 41+
Percentage of fresh embryo transfers resulting in a pregnancy using non-donor eggs
48%
55%
30%
40%*
Percentage of fresh embryo transfers resulting in
a Twin pregnancy using non-donor eggs
45%
22%
17%
33%
Number of fresh embryo transfers resulting in
a Triplet pregnancy using non-donor eggs
0
0
0
0
 
Frozen Embryo Transfer (Own Eggs)
Percentage of frozen embryo transfers resulting in a pregnancy using non-donor eggs
All ages = 42%
 
Donor Eggs
Percentage of fresh embryo transfers resulting in a pregnancy using donor eggs
All ages = 76%
Percentage of fresh embryo transfers resulting in
a Twin pregnancy using donor eggs
All ages = 58%
Number of fresh embryo transfers resulting in
a Triplet pregnancy using donor eggs
All ages = 0

Pregnancy rates are presented as clinical pregnancies defined as evidence of a pregnancy on an ultrasound

Please note that these statistics will not reflect subsequent miscarriage rates. Be careful when evaluating rates to be sure you understand the differences between biochemical pregnancy, clinical pregnancy, and live birth. Pregnancy tests reported by ultrasound evidence of a gestational sac in the uterus will be slightly lower than positive pregnancy tests.

The most common statistic used to evaluate the performance of a clinic is the "percentage of fresh embryo transfers resulting in a clinical pregnancy". This number represents the percentage of women that have evidence of a pregnancy by ultrasound. This is the number that is most relevant to an individual woman based on her age. There are many other factors that affect the pregnancy rates and therefore an individual can not be given an exact "quote" of her chances of pregnancy. A woman can be given an estimate based on her age group. The factors that may increase or decrease a woman's individual chances will be reviewed and discussed in detail during an IVF consultation.

* As age increases, pregnancy rates normally decline. The 41+ category shown above likely represents a sample error that occurs when an unexpected higher than normal percentage of women become pregnant. When evaluated over several years, this rate would likely be lower than the rate shown for the 38-40 year old group.

When evaluating a program, it is also essential to consider the pregnancy rate associated with frozen embryo transfers. When there are extra embryos that can not be transferred due to the risk of multiple pregnancies, these embryos are frozen for later use. A program with a higher than average pregnancy rate using frozen embryos will increase a woman's overall chances of success. Our success with frozen embryos has consistently remained high. This increases a couple's chances while helping to minimize costs by avoiding the need for an additional egg retrieval and IVF cycle.

Clinics that transfer higher numbers of embryos to achieve a higher rate of success will have an increased risk of triplet pregnancies. When evaluating a clinic's success, take note of the rate of triplet pregnancies. A high percentage of triplet pregnancies represents a significant risk to the mother and baby. Every effort should be made to minimize the number of triplet pregnancies associated with IVF. We are proud to announce that we did not have any triplet pregnancies from in vitro fertilization, ICSI, or donor eggs for the years 2006 and 2007.

The success achieved with donor eggs is often a hallmark of the quality of an embryology laboratory. Using donor eggs, variables such as age, different causes of infertility, and response to treatment protocols are usually minimized. Because donor eggs have a very low rate of chromosome or genetic abnormalities, the expected rate of pregnancy is expected to be very high. In 2007, our clinic experienced a 76% rate of pregnancy using donors. In fact, in recipients that did not have complicating factors such as uterine abnormalities, the fresh transfer pregnancy rate was 87%. This rate has been consistently maintained over the last 3 years. We are extremely proud of these numbers. If you are considering donor eggs, please call to schedule your new patient appointment to take advantage of these outstanding pregnancy rates.

Disclaimer
Many factors influence the success of a clinic. Statistics can not be the only criteria used in selecting which clinic is "best". Factors such as patient selection, miscarriages, and difficulty of cases may influence treatment outcomes. While we are proud of our success, you should select a program that best fits you based on your individual problem and desires. We welcome you to call with questions or schedule a free tour to become more familiar with our clinic before you commit to treatment.

You may find more information concerning statistics and selecting an infertility program through ASRM and the Center for DIsease Control (CDC). If you have any questions, please do not hesitate to call.

 

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California IVF: Davis Fertility Center.  Providing infertility and IVF services to the Sacramento and Roseville area.  Services include IVF, inseminations - IUI, male and female infertility, PGD, ICSI, and much more.