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Success Rates

The Bristol Centre for Reproductive Medicine (BCRM) results match or exceed the normal chances of achieving pregnancy and birth in fertile couples. For young fertile couples trying naturally, the normal chance of pregnancy per menstrual cycle is approximately one in six.

We understand you want to know your chances of success however, success rates should only be used as a general guide. They should not be used as a prediction of your own chances of success. 

Other methods offer varying degrees of success, depending on the cause and degree of the infertility problem(s) in each couple. We’ll give you up-to-date, detailed results as they apply to you and your individual circumstances, to help you make choices.

Our Successes

The tables below show the latest Bristol Centre for Reproductive Medicine clinical pregnancy rates for IVF & ICSI cycles for patients using their own eggs in a “fresh” cycle, including our latest available results.

We have also presented our 2015 results as per the HFEA website format and included the HFEA quoted national average where available in order that you may directly compare the success rates we obtain here at BCRM with other units should you wish to do so.

Where pregnancies are reported, these have been confirmed by the presence of a foetal heartbeat by ultrasound scan.

Single Embryo Transfer patients Clinical Pregnancy Rates per transfer 2015 (Jan-June)
  Below 35 yrs <37 yrs
Clinical Pregnancy rate per embryo transfer 65.5%
(78/119)
60.5%
(112/185)
HFEA National Average Not available Not available

 

Frozen Embryo Transfer patients Clinical Pregnancy Rates per transfer  2015
  Below 35 yrs <37 yrs
Clinical Pregnancy rate per embryo transfer 44.2%
(34/76)
29%
(9/21)
HFEA National Average Not available Not available

 

2014 (Jan-June) IVF/ICSI Data, Live Birth Rates per cycle started by age 
  Below 35 yrs 35-37 yrs 38-39 yrs 40-42 yrs 43-44 yrs Over 44 yrs
Live birth rate per cycle started 36.8% (161/486) 20.3% (66/325) 12.6% (30/277) 15.2% (5/33) 5.8%
(5/33)
++
 
             
HFEA National Average 35.2% 21.9% 14.9% 13% 2.9%  

 

*statistically ABOVE the HFEA quoted national average.

++ As per HFEA quoted figures, percentages are not quoted where numbe rof cases total less than 50. Guidance as to the interpretation of clinic success rates can also be found on HFEA www.hfea.gov.uk/fertility-clinics-success-rates.html.