Success Rates

According to the Canadian Fertility and Andrology Society and the IVF Medical Directors of Canada, in 2013, the live birth rate per cycle started for women under 35 was 41% with in vitro fertilization (IVF).

These percentages decline as a woman gets older.

  • For women aged 35-39, the live birth rate per cycle was 30%.
  • For women 40 years old and over, the live birth rate per cycle was 15%.

The data was collected from 34 of 36 IVF centres in Canada where a combined total of 14,861 IVF/ICSI treatment cycles were undertaken in 2013.

The overall live birth rate was 23% per cycle started.

According to the U.S. Centers for Disease Control’s SART (Society for Assisted Reproductive Technology) 2014 statistics, a woman’s age not only affects the chance for pregnancy but also affects her risk for miscarriage. The percentages of ART cycles that resulted in miscarriage were below 14% among women 35 or younger. However, the miscarriage rates began to increase among women in their mid- to late-30s and continued to increase with age, reaching 29% at age 40 and over 60% among women older than age 44. Among women in the U.S. undergoing ART procedures using fresh, non-donor eggs or embryos, the risk for miscarriage appears to be similar to that experienced by other pregnant women in the US.


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