What is the success rate of IVF single embryo transfer in older women?

The success rate of IVF with single embryo transfer (SET) is closely tied to a woman’s age. Women under 35 typically have a success rate of 40% to 50% per transfer. However, this rate drops significantly in older women, with those over 40 seeing success rates between 10% and 20% per transfer. As age increases, both the quantity and quality of eggs decline, affecting outcomes.