In Vitro Fertilisation
(asked on 4th January 2019) - View Source
Question to the Department of Health and Social Care:
To ask the Secretary of State for Health and Social Care, what the live birth rate was under IVF when 15-20 eggs were collected and frozen embryos were transferred from fresh stimulated cycles in each year since 2013.
The information requested is shown in the following table:
Live birth rate: eggs collected and frozen embryos transferred | ||||
Year of egg collection | 1 to 9 eggs collected | 10 to 14 eggs collected | 15 to 20 eggs collected | 21 or more eggs collected |
2013 | 51.85 | 61.46 | 68 | 72.2 |
2014 | 50.59 | 63.97 | 66.57 | 69.63 |
2015 | 44.47 | 54.68 | 60.24 | 64.26 |
2016 | 37 | 46.35 | 50.64 | 58.33 |
2017 | 21.39 | 25.06 | 30.42 | 36.32 |
Source: The Human Fertilisation and Embryology Authority (HFEA)
The data is as shown on the HFEA’s register database on 8 January 2019. This is a live database so these figures reflect the data on this day and are likely to change over time.
The live birth rate reported is the number of births that resulted from egg collections where embryos were stored and subsequently transferred as a proportion of the number of egg collections.
This is a cumulative birth rate over the course of any frozen transfers resulting from the initial egg collection. This is why there is a higher birth rate for frozen cycles which took place in 2013: there have been around five years in which frozen embryo transfers could have resulted in a birth, compared to only one year for egg collections which took place in 2017.