The Center for Disease Control does extensive analysis each year to compile data on the average success rates submitted by fertility clinics nation-wide.
The latest report (2007) shows that there were 430 reporting fertility clinics performing ART treatment for the year.
These 430 clinics reported 95,765 ART cycles using fresh embryos. As a result of those cycles, 32.35% got pregnant, and 25.625% carried the baby to term and gave birth. That means that the average national ART success rate for a fresh cycle in 2007 was 25.625%.
The results differ for each woman’s age category, the national average looks as follows:
National Summary: 2007
2007 ART CYCLE PROFILE
|Type of ARTa||Procedural Factors||Patient Diagnosis|
|IVF||>99%||With ICSI||63%||Tubal factor||8%||Other factor"||8%|
|GIFT||<1%||Unstimulated||<1%||Ovulatory dysfunction||7%||Unknown factor||11%|
|ZIFT||<1%||Used gestational carrier||<1%||Diminished ovarian reserve||13%||Multiple Factors:|
|Combination||<1%||Use of PGD||5%||Endometriosis||4%||Female factors only||12%|
|Uterine factor||1%||Female & Male factors||18%|
2007 PREGNANCY SUCCESS RATES
|Type of Cycle||Age of Women|
|Fresh Embryos From Nondonor Eggs||<35||35-37||38-40||41-42c|
|Number of cycles||42119||23503||20608||9535|
|Percentage of cycles resulting in pregnancies||45.7||37.2||28.1||18.4|
|Percentage of cycles resulting in live birthsb||39.6||30.5||20.9||11.5|
|Percentage of retrievals resulting in live birthsb||42.9||34.2||24.4||14.0|
|Percentage of transfers resulting in live birthsb||45.9||36.9||27.1||16.0|
|Percentage of transfers resulting in singleton live births||29.9||25.7||20.6||13.6|
|Percentage of cancellations||7.6||10.8||14.1||17.8|
|Average number of embryos transferred||2.2||2.5||2.8||3.1|
|Percentage of pregnancies with twins||33.2||28.2||21.6||14.0|
|Percentage of pregnancies with triplets or more||3.5||4.5||4.0||2.5|
|Percentage of live births having multiple infantsb||34.9||30.4||23.9||15.4|
|Frozen Embryos From Nondonor Eggs|
|Number of transfers||10515||5386||3518||1125|
|Percentage of transfers Resulting in live birthsb||33.6||29.9||25.0||20.8|
|Average number embryos transferred||2.2||2.2||2.4||2.5|
All Ages Combinedd
|Donor Eggs||Fresh Embryos||Frozen Embryos|
|Number of transfers||10321||5632|
|Percentage of transfers resulting in live births||55.1||31.9|
|Average number of embryos transferred||2.2||2.3|
2007 CURRENT CLINIC SERVICES AND PROFILE
Total Number of reporting clinics: 430
|Percentage of Clinics that offer the following services||Clinic Profile|
|Services||Percentage of Clinics||Profile||Percent|
|Donor egg?||93||SART Member||88|
|Donor embryo?||67||Verified lab accreditation|
a Reflects patient and treatment characteristics of ART cycles performed using fresh nondonor egges or embroys
b A multiple-infant birth is counted as one live birth.
c See National Summary statistics for women older than 42.
d All ages (including age >42 are reported together because previous data show that patient age does not materially affect success with donon eggs.
*All data taken from the Center for Disease Control and Prevention