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Success Rates


Fresh Embryo Transfer graph CFC


Frozen Embryo Transfer Graph CFC 16-17.j

Explanation of Success Rates


The data above includes both IVF and ICSI treatment, donor embryo and oocyte cycles have been excluded.


Please be aware that patient numbers for some groups are small, so may not be a true representation of the actual outcome according to age.


CFC is committed to performing single embryos transfers. 76% of embryo transfers were single embryo transfers in 2016 and 2017.


In 2016, CFC has increasingly moved towards a freeze best embryo policy due to the higher chance of pregnancy in frozen embryo transfers 


There were no pregnancies or live births in women ≥45 yrs old at CFC in 2016 and 2017


A clinical pregnancy is defined as follows:


  1. The presence of an intrauterine sac (with or without foetal heart) observed on 7 week ultrasound scan;

  2. An ectopic pregnancy;

  3. If a pregnancy is ongoing at 20 weeks.


A live birth is defined as: The complete expulsion or extraction from the mother of a baby which shows evidence of life (


Your live birth rate for your age group is the most meaningful chance of your success.


Success rates may be affected by a number of factors which include the type of treatment undertaken, the cause of infertility, age, lifestyle factors, genetic factors and quality of the eggs and sperm.


Please be aware, depending on the cause of your infertility or reasons for undertaking treatment not every treatment cycle undertaken will result in an egg collection, an embryo transfer or embryos to freeze


Please visit this site for more information about interpreting pregnancy rates

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