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CREATE Centre for Reproduction and Advanced Technology
London

IVF and ICSI data

The type of patients a clinic treats affects the clinic’s live birth rates. It may therefore be misleading to directly compare the success rates of different clinics as they differ in the types of patients they treat. The majority of clinics perform around the national average.

Show the breakdown of patients this clinic treated

Please be aware that the data on diagnoses and reasons for treatment, as well as on length of infertility is submitted by clinics but not currently verified by the HFEA.

More on how we collect and publish data

Reasons for patients undergoing fertility treatment in 2011
Reasons for patients treated in 2011 This clinic National average
Male Factor infertility 22.4% 26.7%
Unexplained 15.2% 21.6%
Tubal disorders 10.0% 9.1%
Multiple factors male and female 4.6% 12.0%
Ovulatory disorders 5.8% 6.2%
Multiple female factors 2.4% 5.1%
Avoid genetic disorder 0% 0.7%
Other 14.6% 9.7%
Endometriosis 4.2% 3.4%
Uterine problems 0.2% 0.4%
Menopausal 0.4% 0.3%
Ovarian failure 15.8% 2.5%
No male partner 4.4% 2.1%
Unknown infertility 0% 0.2%
Age split of patients undergoing fertility treatments and average length of infertility
Age of patients treated in 2011 This clinic National average
Under 35 22.8% 43.1%
35-37 18.4% 22.5%
38-39 14.0% 15.3%
40-42 23.4% 13.5%
43-44 14.4% 3.6%
Over 44 7.0% 1.9%
Unknown age 0% 0%
  This clinic National average
Average length of infertility of patients treated in 2011 3.3 years 4.5 years

Why are we showing different success rates?

There are different ways to measure the success of treatment. For example you can look at how likely a treatment cycle will lead to a live birth, or how likely each embryo that is transferred during treatment will lead to a live birth.

Some clinicians feel that ‘live birth per embryo transferred’ is a more meaningful measure of success than ‘live birth per cycle started’ because:

  • it takes into account how many embryos clinics transfer in their cycles (eg, cycles can either have one, two or, very occasionally, three embryos transferred)
  • Live birth per cycle started’ does not take into account that unfortunately some cycles are cancelled before the embryo transfer stage and therefore cannot result in a live birth

The safest outcome of fertility treatment is a single baby. Multiple pregnancies are the biggest risk to mother and child from fertility treatment. A clinic should therefore aim to have a high proportion of single babies born, and a low proportion of twins and triplets.

A substantial part of this centre’s activity is Natural IVF cycles. The IVF and ICSI cycles shown here do not include natural cycles. To view Natural IVF data see ‘take a closer look’.

Live births per treatment cycle started in the year ending 4th quarter 2011

This shows how many women had a live birth out of all the women who began a treatment cycle. A treatment cycle starts when a woman begins taking fertility drugs to stimulate her egg production.

Age Live births per treatment cycle Predicted chance of an average patient having a live birth Why this range? How does this clinic compare to the national average?What does this mean?
Under 35 37 out of 82
Predicted chance between: 29.6% - 61.7% most likely around: 45.1%
Consistent with national average live birth rate of 32.2%
35-37 29 out of 67
Predicted chance between: 26.6% - 61.6% most likely around: 43.3%
Consistent with national average live birth rate of 27.4%
38-39 10 out of 38
Predicted chance between: 10.8% - 51.4% most likely around: 26.3%
Consistent with national average live birth rate of 20.0%
40-42 9 out of 64
Predicted chance between: 5.4% - 32.1% most likely around: 14.1%
Consistent with national average live birth rate of 13.5%
43-44 0 out of 19
Predicted chance between: 0.0% - 33.4% most likely around: 0.0%
Consistent with national average live birth rate of 5.5%
Over 44 1 out of 7
Predicted chance between: 1.3% - 68.5% most likely around: 14.3%
Consistent with national average live birth rate of 0.9%

Live births per embryo transferred in the year ending 4th quarter 2011

This shows the likelihood of each embryo transferred resulting in a live birth. It takes into account how many embryos were transferred in a cycle. It presents how many women had a live birth out of the total number of embryos transferred across all cycles. The success rates appear lower than for live birth per cycle started because clinics often transfer two embryos in a cycle.

Age Live births per embryo transferred Predicted chance of an average patient having a live birthWhy this range? How does this clinic compare to the national average?What does this mean?
Under 35 37 out of 141 Predicted chance between: 16.6% - 38.9% most likely around: 26.2%
Consistent with national average live birth rate of 23.7%
35-37 29 out of 123 Predicted chance between: 13.9% - 37.0% most likely around: 23.6%
Consistent with national average live birth rate of 18.5%
38-39 10 out of 69 Predicted chance between: 5.8% - 31.8% most likely around: 14.5%
Consistent with national average live birth rate of 13.0%
40-42 9 out of 119
Predicted chance between: 2.8% - 18.6% most likely around: 7.6%
Consistent with national average live birth rate of 7.5%
43-44 0 out of 34
Predicted chance between: 0.0% - 21.9% most likely around: 0.0%
Consistent with national average live birth rate of 3.2%
Over 44 1 out of 7
Predicted chance between: 1.3% - 68.5% most likely around: 14.3%
Consistent with national average live birth rate of 0.6%

Proportion of single births in the year ending 4th quarter 2011

The single biggest risk of fertility treatment is multiple pregnancy. The birth of a single, healthy baby is the safest outcome of fertility treatment.

Age Proportion of single babies born of all live births Proportion of twins born of all live births Proportion of triplets born of all live births Current HFEA target for single births
Under 35 83.8%National average 79.9% 16.2%National average 19.8% 0%National average 0.2% HFEA target for single births (April 2011 to September 2012), 85%
35-37 89.7%National average 81.9% 10.3%National average 17.9% 0%National average 0.3%
38-39 70.0%National average 82.2% 30.0%National average 17.5% 0%National average 0.3%
40-42 100.0%National average 86.4% 0%National average 13.0% 0%National average 0.6%
43-44 0%National average 92.3% 0%National average 7.7% 0%National average 0%
Over 44 100.0%National average 100.0% 0%National average 0% 0%National average 0%
All ages 86.0%National average 81.2% 14.0%National average 18.5% 0%National average 0.3%
One at a time: Better outcomes from family treatment

The single biggest risk of fertility treatment is multiple pregnancy.

One at a time is a professionally-led site aimed at reducing the risks of multiple pregancies from fertility treatment

Take a closer look at the data

You can find more detailed information about the treatment cycles at this clinic. This includes data from previous years and other types of treatment.

…take a closer look at the data

The information that we publish on our website is a snap shot of data provided to us by licensed centres at a particular time. This information may be subject to change as individual centres notify us of amendments. Before publication, we perform a preliminary validation process on the data, and ask centres to confirm its accuracy, for which they remain responsible.

Hints and tips

Donor cycles

We do not show success rates for cycles using embryos from donor eggs by different age categories. This is because all egg donors are aged 35 or under.

Live births per treatment cycles

This shows how many women actually had a live birth out of all the women who began a treatment cycle in this year. A treatment cycle starts when a woman begins taking fertility drugs to stimulate her egg production.

Live births per treatment cycles

This shows how many women actually had a live birth out of all the women who had a frozen embryo transfer in this year.

Pregnancies per treatment cycles

This shows how many women actually became pregnant out of all the women who began a treatment cycle in this year.

Live births per treatment cycles

This shows how many women actually had a live birth out of all the women who had an DI treatment cycle in this year.

Live births per embryo transferred

This shows how many live births there actually were out of the total number of embryos transferred across all cycles in this year. It takes into account how many embryos clinics transfer in their cycles (eg, one, two or very occasionally three embryos).

Proportion of triplets born out of all live births

Any higher order multiples (eg, quads) will also be included in this column.

Proportion of triplet pregnancies out of all pregnancies

Any higher order multiple pregnancies (eg, quads) will also be included in this column.

Proportion of triplets born out of all live births

Any higher order multiples (eg, quads) will also be included in this column.

HFEA targets for single births

The HFEA introduced a policy in January 2009 to minimise the proportion of multiple births following IVF and ICSI treatment. The policy promotes the birth of a single baby as the safest outcome of fertility treatment.

The HFEA has set progressively higher targets over recent years. From January 2009 to March 2010 the target for single births was 76% (ie a maximum of 24% multiple births). From April 2010 to March 2011 the target was 80%. From April 2011 to September 2012 the target was 85% and from October 2012 onwards the target is 90%.

The clinic data we present on Choose a Fertility Clinic relate to treatments which took place before the current 90% target. The target displayed is the most appropriate for comparison with the data in the tables.