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
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