The chance of becoming pregnant by IVF/ICSI
In order for IVF treatment to result in a pregnancy, all steps in the treatment must be successful. It is never possible to predict if the treatment will be successful in a particular woman and cycle. Our statistics are based on average probabilities from our own clinic and on data from the international scientific literature. National Danish results may be found on The Danish Fertility Society’s website www.fertilitetsselskab.dk.
Since the start of our clinic in 1993, we have performed more than 19.000 IVF/ICSI cycles and several thousand treatments with cryopreserved embryos.
The highest success rates are obtained when the woman is young (less than 38-40 years). When there are two fertilised embryos of good quality for transfer the pregnancy chance is optimal. In this situation, the chance of a positive pregnancy test is between 40-50% per transfer. After subtracting the miscarriages (approximately 20% of the pregnancies) the chance for giving birth to one or two children is around 30-35%.
After three successfully completed treatment cycles on average 70-75% of the women will have given birth. The pregnancy chance declines gradually as the woman’s age increases regardless of the cause of infertility. Therefore the pregnancy chance is higher the younger the woman is. In women above 40 years the average chance for pregnancy/birth is approximately half of the figures mentioned above.
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