In Vitro Fertilisation

Department of Health written question – answered on 1st November 2017.

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Photo of Lord Winston Lord Winston Labour

To ask Her Majesty's Government, in each year since 2008, what has been the incidence of (1) foetal abnormalities, and (2) autism or other neurological disorder, in birth or pregnancies resulting from the use of frozen oocytes after thawing and fertilisation.

Photo of Lord O'Shaughnessy Lord O'Shaughnessy The Parliamentary Under-Secretary of State for Health

Information on the incidence of foetal abnormalities is shown in the following table:

Includes only cycles where exclusively embryos created from frozen eggs were transferred

Year of treatment

Foetal abnormalities

2008

0

2009

1 (observed)

2010

0

2011

1 (uncertain)

2012

0

2013

0

2014

0

2015

0

Note: Data has been provided for the latest verified data period: to 30 June 2015 for births.

Source: The Human Fertilisation and Embryology Authority

The Human Fertilisation and Embryology Authority (HFEA) has advised that since October 2007 it has only collected data where a congenital abnormality was reported as either observed or uncertain following a birth event. The HFEA has also advised that it does not collect information on the incidence of autism or other neurological disorders in births or pregnancies resulting from the use of frozen oocytes after thawing and fertilisation.

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