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In Vitro Fertilization (cont.)

Success Rates for In Vitro Fertilization

The live birth rate for one cycle varies by maternal age. According to the Society of Assisted Reproductive Technologies (SART):

  • The live birth rate per IVF cycle is 40%-43% among women younger than 35 years of age and 33%-36% for those aged 35 to 37 years.
  • The success rate ranges from 13%-18% in those older than 40 years of age.
  • Pregnancy in women older than 44 years of age is rare.

When reviewing statistics for different IVF programs, it is important to understand what is actually being reported. A pregnancy rate may include so-called chemical pregnancies, in which the pregnancy test is positive but the pregnancy ends before a viable fetus can be demonstrated by ultrasound. Pregnancy rate is also different from the live birth rate, since it includes all pregnancies that may or may not lead to a live birth. Even live birth rates may vary among different clinics because of selection criteria for patients and the number of embryos typically transferred.

The rate of miscarriages with IVF pregnancies is the same as that with normally conceived pregnancies. Ectopic pregnancy occurs in about 3% to 5% of cases. An ectopic pregnancy is a serious condition that requires emergency medical care. The embryo is growing outside the uterus and does not survive.

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Patient Comments & Reviews

The eMedicineHealth doctors ask about In Vitro Fertilization (IVF):

In Vitro Fertilization - Experience

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In Vitro Fertilization - Other Techniques

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In Vitro Fertilization - Egg or Sperm Donation

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In Vitro Fertilization - Experience

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