Success Rates At MFS
This section includes all the success rates for treatments at MFS. These statistics were updated in May 2009.
Three types of success rates are available in this section:
- headline success rates - simplified single figures for an ‘at a glance’ understanding of the outcome of some treatments
- summary results - statistics of the outcomes of key stages of each treatment, including the livebirth rate (LBR) for the cumulative three year tables and the pregnancy rates for the results of treatments carried out in 2008 (some pregnancies from last year are still on-going and so LBRs cannot be produced yet)
- extended results - comprehensive results of all stages of each treatment
Results for most treatments are given for three age groups:
- ≤35 - ie women up to and including the age of 35. Natural fertility and the average response to fertility treatment is usually greater in women who are in this age group
- 36-39 - ie women aged 36 to 39 years old. Natural fertility starts to decline in this age group and the average response to fertility treatment may not be as successful as that for younger women. About 50% of women who have treatment at MFS are aged 36 years or older
- ≥40 - ie women aged 40 years and more. On average, natural fertility declines significantly after 40 years and achieving a successful response to fertility treatment and the chance of a healthy pregnancy using a woman’s own eggs is reduced accordingly. Miscarriage rates are much higher in the age group.
IUI
Results for IUI treatments are shown in two tables, showing the outcomes of treatments for both partner and donor sperm:
- combined annual pregnancy rates for January - December 2008
- combined cumulative LBR for January 2005 - December 2007
More information
IVF, ICSI, SSR with ICSI and FETs
For each of the IVF, ICSI, SSR with ICSI and FETs treatments, two tables of information show:
- annual pregnancy rates for January - December 2008
- cumulative LBR for January 2005 - December 2007
More information
- Go to IVF summary success rates
- Go to IVF extended success rates
- Go to information on IVF treatment
- Go to ICSI summary success rates
- Go to ICSI extended success rates
- Go to information on ICSI treatment
- Go to SSR with ICSI summary success rates
- Go to SSR with ICSI extended success rates
- Go to information on surgical sperm retrieval treatment
- Go to frozen embryo transfer summary success rates
- Go to frozen embryo transfer extended success rates
- Go to information on embryo freezing and transfer
Egg sharing
Results of the egg share programme are included in two tables and indicate:
- cumulative LBR for donors for January 2005 - December 2007
- cumulative LBR for recipients for January 2005 - December 2007
Additional information is provided about the outcome of treatment carried out in 2008.
- Go to egg sharing summary success rates
- Go to egg sharing extended success rates
- Go to information on egg sharing treatment
Blastocyst transfer
Results of the blastocyst transfers are included in three tables indicating:
- annual pregnancy rates for January - December 2008
- fetal heartbeats for January - December 2008 (extended results only), showing the pregnancy rate and chance of conceiving a multiple birth when one or two blastocysts are transferred
- LBR for January 2006 - December 2007 (blastocyst transfers were introduced to MFS in 2006 and so cumulative LBR data is currently available for two instead or three years
More information
- Go to blastocyst transfer summary success rates
- Go to blastocyst transfer extended success rates
- Go to information blastocyst transfer
Egg freezing
Results of the thaw, fertilisation and transfer of previously frozen eggs are indicated in a single table:
- cumulative LBR and pregnancy rates for January 2000 - December 2007
To date, (June 2009) MFS continues to be the only UK clinic to have achieved livebirths following the freezing of the mothers’ own eggs and the subsequent thaw, fertilisation and transfer, after the birth of four babies since June 2002.
- Go to egg freezing summary success rates
- Go to egg freezing extended success rates
- Go to information on egg freezing treatment
Contact Jyoti Patel, MFS information analyst, for more information about success rates at MFS.