Success Rates
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% | ||||
Male factor | 17% |
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
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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 | |
Single women? | 91 | Yes | 91 |
Gestational Carriers? | 82 | No | 3 |
Cryopreservation? | 99 | Pending | 6 |
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