Leaders in Fertility Research and Care
Timothy N. Hickman, M.D. | Laurie J. McKenzie, M.D. | Katherine K. McKnight, M.D.
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IVF Success Rates:

2002-2012 Live Birth Data

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World Class Success Rates at Houston IVF –
Extraordinary Results for Those In All Age Groups

Our extraordinary success rates with IVF are due to many factors. First, we meticulously screen patients for hidden causes of prior or potential IVF failure. Chromosomal abnormalities in the patient’s own peripheral blood, the presence of hydrosalpinges, the presence of uterine fibroids or other entities, which compromise the uterine cavity, and abnormalities of sperm morphology are a few examples of irregularities that can be detected during pretesting. By identifying these factors prospectively, we can correct these abnormalities and maximize the patient’s chance for success.

The second contributor to our excellent results is our IVF laboratory. Our embryologists are able to grow embryos in an optimal environment and increase their growth, development, and implantation potential. We can also add technologies such as assisted hatching to further enhance the opportunity for embryos to implant. Other additions to the laboratory, such as the transfer of embryos in “embryo glue” (hyaluronan), can further facilitate the embryo’s success.

In addition to the laboratory aspects of IVF, certainly the methods of stimulating patients are of critical importance. We, at Houston IVF, are considered experts on the treatment of poor responders and have implemented protocols to maximize the yield of oocytes for these patients. Each patient’s characteristics are evaluated, and an individualized treatment plan is created. No standard stimulation protocol exists. As shown below, our success rates are well above the national average even for the most challenging patients who have already failed multiple cycles of IVF before they arrive at our door. By obtaining an optimal number and quality of oocytes initially, we can optimize the best outcome for patients in terms of embryo development.

The following statistics are for patients using their own eggs. The fact that our center has achieved live birth rates significantly higher in each age category compared to the national data is a claim that few IVF centers can make nationwide. Statistics for women using donor egg patients are found below as well.

Houston IVF Statistics

2002-2012 Statistics
Fresh Embryos from Non-donor Eggsa
Type of Cycle Age of Women
<35 35-37 38-40 41-42
Number of cycles 1350 698 587 246
Percentage of cycles resulting in pregnancies 59.6% 54.3% 41.1% 29.3%
Percentage of cycles resulting in live birthsb 55.3% 45.1% 33.7% 18.7%
(Reliability Range) (52.6 - 57.9) (41.4 - 48.8) (29.9 - 37.6) (13.8 - 23.6)
Percentage of retrievals resulting in live birthsb 55.8% 46.1% 35.0% 19.2%
Percentage of transfers resulting in live birthsb 56.3% 47.1% 35.8% 19.5%
Percentage of cancellations 0.9% 2.0% 3.6% 2.4%
Average number of embryos transferred 2.2 2.5 3.1 3.5
Percentage of live births with twins 41.6% 35.6% 26.3% 19.6%
Percentage of live births with triplets or moreb 3.4% 4.1% 2.5% 0.0%
Thawed Embryos from Non-donor Eggs
Type of Cycle Age of Women
<35 35-37 38-40 41-42
Number of transfers 236 137 102 22
Percentage of transfers resulting in live birthsb 43.6% 39.4% 38.2% 36.4%
Average number of embryos transferred 2.1 2.1 2.0 2.0
All Ages Combined
Donor Eggsc Fresh
Embryos
Thawed
Embryos
Number of transfers 356
95
Percentage of transfers resulting in live birthsb 66.9% 37.9%
Average number of embryos transferred 2.0 2.0

A comparison of clinic success rates may not be meaningful because medical characteristics and treatment approaches may vary from clinic to clinic.
a) Reflects patient and treatment characteristics of ART cycles performed in 2002-2012 using fresh, non-donor eggs or embryos
b) Pregnancies resulting in one or more children born alive (i.e., a multiple-infant birth is counted as one live birth).
c) All ages (including age >42) are reported together because previous data show that patient age does not materially affect success with donor eggs.
For patients older than 42 undergoing ART cycles using fresh, non-donor eggs or embryos, clinic-specific outcome rates are unreliable. Patients are urged to review national outcomes for these age groups.

Our Success Rates

Houston IVF has consistently achieved pregnancy rates that are ranked higher than the national average in every age group.

Most U.S. fertility programs follow the guidelines of the Society for Assisted Reproductive Technology (SART) www.sart.org to report success rates. Each year, SART and the Centers for Disease Control and Prevention (CDC) collect and publish this comprehensive, clinic-specific data. Results are organized by state and by procedure. The data includes information on pregnancy outcomes, such as the rate of miscarriages, twins, and other multiple births.

Now SART has made clinical success rates easier to navigate and more informational. You can view all clinics' most recent success rates (currently 2012), broken down by different patient conditions such as Tubal Factor, Male Factor, etc. Just click here to get started! (www.sart.org)

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Houston IVF and National Statistics

2012
Fresh Embryos from Non-donor Eggsa
Type of Cycle Age of Woman
<35 35-37 38-40 41-42
Number of cycles Houston IVF 179 83 89 44
National 38,662 19,599 18,410 10,167
Percentage of cycles resulting in pregnancies Houston IVF 63.7% 48.2% 39.3% 25.0%
National 46.7% 37.8% 29.7% 19.8%
Percentage of cycles resulting in live birthsb Houston IVF 61.5% 38.6% 30.3% 13.6%
National 40.7% 31.3% 22.2% 11.8%
(Reliability Range) Houston IVF (54.3 - 68.6) (28.1 - 49.0) 20.8 - 39.9) (3.5 - 23.8)
National (40.2 - 41.1) (30.7 - 32.0) (21.6 - 22.8) (11.2 - 12.4)
Percentage of retrievals resulting in live birthsb Houston IVF 61.8% 39.5% 30.7% 14.0%
National 43.4% 34.5% 25.4% 14.0%
Percentage of transfers resulting in live birthsb Houston IVF 62.5% 41.6% 31.4% 14.3%
National 47.1% 37.9% 28.5% 16.3%
Percentage of cycles with elective single embryo transfer Houston IVF 3.4% 2.6% 4.7% 0.0%
National 14.8% 8.9% 3.0% 1.2%
Percentage of cancellations Houston IVF 0.6% 2.4% 1.1% 2.3%
National 6.3% 9.2% 12.7% 15.8%
Implantation rate Houston IVF 51.1% 29.4% 17.6% 6.7%
National 37.5% 27.6% 18.4% 9.8%
Average number of embryos transferred Houston IVF 2.1 2.2 2.8 3.2
National 1.9 2.0 2.4 2.9
Percentage of live births with twins Houston IVF 46.4% 31.2% 22.2% 1/6
National 29.5% 25.0% 20.3% 13.4%
Percentage of live births with triplets or more Houston IVF 3.6% 0.0% 7.4% 0/6
National 1.1% 0.7% 0.7% 0.7%
Thawed Embyros from Non-Donor Eggsa
Type of Cycle Age of Woman
<35 35-37 38-40 41-42
Number of Transfers Houston IVF 67 48 43 5
National 15,667 7,884 5,657 2,295
Percentage of transfers resulting in live birthsb Houston IVF 38.8% 43.8% 32.6% 2/5
National 42.4% 39.8% 33.9% 26.4%
Average number of embryos transferred Houston IVF 1.9 2.0 1.8 1.8
National 1.8 1.8 1.8 1.9
All Ages Combined
Donor Eggsc Thawed Embryos Fresh Embryos
Number of Transfers Houston IVF 19 44
National 7,608 9,250
Percentage of transfers resulting in live birthsb Houston IVF 6/19 72.7%
National 37.2% 56.6%
Average number of embryos transferred Houston IVF 1.8 1.9
National 1.8 1.8

A comparison of clinic success rates may not be meaningful because medical characteristics and treatment approaches may vary from clinic to clinic.
a) Reflects patient and treatment characteristics of ART cycles performed in 2002 - 2012 using fresh, non-donor eggs or embryos
b) Pregnancies resulting in one or more children born alive (i.e., a multiple-infant birth is counted as one live birth).
c) All ages (including age >42) are reported together because previous data show that patient age does not materially affect success with donor eggs.
For patients older than 42 undergoing ART cycles using fresh, non-donor eggs or embryos, clinic-specific outcome rates are unreliable. Patients are urged to review national outcomes for these age groups.
The above information was from the CDC and SART ART reports from 2002 - 2012. All information is current as of 2/18/2014.


To obtain more information about our services we may be contacted by e-mail, USPS, telephone, or fax as follows:

Dr. Timothy Hickman, Dr. Laurie McKenzie and Dr. Katherine McKnight
Houston IVF
929 Gessner, Suite 2300
Houston, Texas 77024
info@houstonivf.net
Office: (713) 465-1211 Fax: (713)550-1475