Treatments & Options - IVF - Success Rates
As women age, success rates with IVF tend to decrease. And, the average couple may undergo two to three attempts at IVF before a successful pregnancy occurs.
Below, we share in vitro fertilization statistics from 2011. This shows the percentage of women, by age group, that gave birth after an embryo transfer with IVF. The first group of IVF statistics shows the percentage of women who gave birth after IVF using fresh embryos. The second group shows IVF statistics for women that used frozen embryos.
- Women under 35: 46.2 %
- Women 35-37: 38.4 %
- Women 38-40: 27.4 %
- Women 41-42: 16.6 %
- Women 42: 6.5 %
IVF success rates with frozen embryos - 2011
- Women under 35: 39.3 %
- Women 35-37: 35.7 %
- Women 38-40: 30.3 %
- Women 41-42: 24.5 %
- Women 42: 16.5 %
When reviewing IVF statistics, it is important to remember that these statistics do not necessarily show how many women got pregnant during their first embryo transfer with IVF. There is no way of knowing whether it was their first, second or third cycle, and so on.
IVF success rates and age
IVF success rates tend to be higher for younger women. Two reasons for this include:
- The quality of a younger woman's eggs is usually better.
- Younger women usually produce more eggs for retrieval with the in vitro fertilization process.
When donor eggs are used, IVF success rates increase for women over 35. Interestingly, IVF success rates by age are the same for younger and older women using donor eggs. The important factor is the age of the donor egg, not the age of the intended mother. IVF success rates are also affected by a woman’s health issues and specific infertility diagnosis.
Factors affecting IVF success
Certain fertility problems lower IVF success rates. The following conditions are linked with lower chances for IVF success:
- Recurrent miscarriage
- Uterine abnormalities
- Issues with sperm health
- Fibroid tumors
- Ovarian dysfunction
- Abnormal hormone level
Women with these issues may face lower rates of pregnancy with IVF.
In vitro fertilization statistics reveal that the average couple has the best chances of success when they commit to trying at least two to three IVF cycles. Your chances of IVF success double when you commit to three IVF cycles. Therefore, you may want to consider trying IVF at least several times. Ask a fertility specialist for more information about IVF success rates and you.