Success Rates

According to the Canadian Fertility and Andrology Society and the IVF Medical Directors of Canada, in 2008, the live birth rate for women under 35 was 38% with in vitro fertilization (IVF).

These percentages decline as a women gets older.

• For women aged 35 to 39 years old, the live birth rate was 28%
• For women 40 years old and over, the live birth rate was 11%

This data was collected from all 28 IVF centres in Canada where 9,904 IVF cycles were undertaken in 2008.

The overall live birth rate was 29% per cycle started. Complications occurred in fewer than 2% of treatment cycles.

According to the U.S. Centers for Disease Control’s SART (Society for Assisted Reproductive Technology) 2006 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 younger than 35. However, the miscarriage rates began to increase among women in their mid- to late 30s and continued to increase with age, reaching 28% at age 40 and 56% among women older than 43. 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.