Success Rates
CRGH consistently delivers some of the highest success rates in the UK, across multiple age groups, and for a range of treatment options. We continue to pioneer new treatments, and support an active research programme that drives innovation and clinical excellence.
Our latest live birth success rates for 2018, and pregnancy rates for 2019 are published below.
You can find national data for comparison at https://www.hfea.gov.uk/about-us/publications/research-and-data/fertility-treatment-2018-trends-and-figures/
PGS Success Rates
At The Centre for Reproductive and Genetic Health, we are able to scan embryos to pick those most likely to result in a healthy, successful pregnancy, before implanting them into the womb. This is done through a microscopic examination of the chromosomes within the embryos; a procedure known as PGS (preimplantation genetic screening).
PGS (frozen cycles) per embryo transfer pregnancy rates Jan 2019 – Dec 2019
| PGS (frozen cycles) PER EMBRYO TRANSFER PREGNANCY RATES Jan 2019 – Dec 2019 |
No. of pregnancies/ no of cycles |
Pregnancy rate |
No. of pregnancies/ no of cycles |
Clinical pregnancy Rate |
| Age under 35 | 30/41 | 73.2% | 27/41 | 65.9% |
| Age 35-37 | 49/72 | 68.1% | 41/72 | 56.9% |
| Age 38-39 | 38/63 | 60.3% | 35/63 | 55.6% |
| Age 40-42 | 56/81 | 69.1% | 51/81 | 63% |
| Age 43-44 | 17/23 | 73.9% | 16/23 | 69.6% |
PGS (frozen cycles) per embryo transfer live birth rates Jan 2017 – Dec 2018
| PGS (frozen cycles) PER EMBRYO TRANSFER LIVE BIRTH RATES Jan 2017 – Dec 2018 |
No. of pregnancies/ no of cycles |
Clinical pregnancy Rate |
No. of pregnancies/ no of cycles |
Live Birth Rate |
| Age under 35 | 37/54 | 68.5% | 36/54 | 66.7% |
| Age 35-37 | 44/64 | 68.8% | 40/64 | 62.5% |
| Age 38-39 | 46/77 | 59.7% | 39/77 | 50.6% |
| Age 40-42 | 52/82 | 63.4% | 50/82 | 61% |
| Age 43-44 | 15/29 | 51.7% | 14/29 | 48.3% |
IVF/ICSI Pregnancy rates using own fresh eggs 2019
| FRESH IVF/ICSI USING OWN EGGS PREGNANCY RATES 2019 |
No. of pregnancies/ no of cycles |
Pregnancy rate per embryo transfer |
No. of pregnancies/ no of cycles |
Clinical pregnancy rate per embryo transfer |
| Age under 35 | 124/187 | 66.3% | 116/187 | 62% |
| Age 35-37 | 90/153 | 58.8% | 79/153 | 52% |
| Age 38-39 | 41/80 | 51.3% | 31/80 | 39% |
| Age 40-42 | 28/58 | 48.3% | 24/58 | 41% |
IVF/ICSI Live birth rates using own fresh eggs per embryo transferred 2018
| FRESH IVF/ICSI USING OWN EGGS LIVE BIRTH RATES 2018 |
No. of pregnancies/ no of cycles |
Live birth rate |
Number of embryos transferred |
Live birth rate per embryo transferred |
| Age under 35 | 99/216 | 45.8% | 286 | 34.6% |
| Age 35-37 |
67/163 | 41.1% | 233 | 28.8% |
| Age 38-39 |
46/115 | 40% | 185 | 24.9% |
| Age 40-42 |
17/55 | 30.9% | 99 | 17.2% |
| Age 43-44 |
1/4 | 25% | 8 | 12.5% |
Frozen embryo transfer pregnancy rates 2019
| FROZEN EMBRYO TRANSFER PREGNANCY RATES 2019 | No. of pregnancies/ no of cycles |
Pregnancy rate | No. of pregnancies/ no of cycles |
Clinical pregnancy rate per embryo transfer |
| Age under 35 | 136/203 | 67% | 120/203 | 59.1% |
| Age 35-37 | 118/195 | 60.5% | 104/195 | 53.3% |
| Age 38-39 | 60/115 | 52.2% | 49/115 | 42.6% |
| Age 40-42 | 48/104 | 46.2% | 37/104 | 35.6% |
| Age 43-44 | 9/21 | 42.9% | 7/21 | 33.3% |
| Age over 44 | 2/8 | 25% | 2/8 | 25% |
Frozen embryo transfer live birth rates 2017 – 2018
| FROZEN EMBRYO TRANSFER LIVE BIRTH RATES 2017 – 18 |
No. of pregnancies/ no of cycles |
Clinical pregnancy rate | No. of pregnancies/ no of cycles |
Live birth rate |
| Age under 35 | 198/357 | 55.5% | 176/357 | 49.3% |
| Age 35-37 | 169/325 | 52% | 149/325 | 45.8% |
| Age 38-39 | 103/227 | 45.4% | 91/227 | 40.1% |
| Age 40-42 | 77/208 | 37% | 60/208 | 28.8% |
| Age 43-44 | 8/53 | 15.1% | 6/53 | 11.3% |
| Age over 44 | 2/13 | 15.4% | 1/13 | 7.7% |
Egg recipients pregnancy rates 2019
| EGG RECIPIENTS PREGNANCY RATES 2019 | No. of pregnancies/ no of cycles |
Pregnancy rate | No. of pregnancies/ no of cycles |
Clinical pregnancy rate |
| Age under 35 | 1/1 | 100% | 1/1 | 100% |
| Age 35-37 | 3/3 | 100% | 3/3 | 100% |
| Age 38-39 | 5/6 | 83.3% | 4/6 | 66.7% |
| Age 40-42 | 16/25 | 64% | 15/25 | 60% |
| Age 43-44 | 13/20 | 65% | 13/20 | 65% |
| Age over 44 | 17/23 | 73.9% | 15/23 | 65.2% |
| IVF | In Vitro Fertilisation |
| ICSI | Intra-Cytoplasmic Sperm Injection |
| Pregnancy Rate (PR) | Positive pregnancy test following embryo transfer |
| Clinical Pregnancy Rate (CPR) | Pregnancy determined by heartbeat heard at pregnancy scan |
The HFEA publishes on its website the results of every licensed clinic in the UK. To understand fertility success rates and other factors that are important when choosing a fertility clinic please refer to the HFEA website: https://www.hfea.gov.uk/choose-a-clinic/.