Document is current

Article History

Received: 26 March 2026

Accepted: 13 June 2026

First Online: 13 July 2026

Declarations

:

: Ethical approval for the secondary analysis of anonymised data was granted by the University of Manchester Ethics Committee (Ref: 2023-18751-31889).

: Not applicable.

: EML, SK and ABS are Cryos employees. GP is a paid member of the Cryos External Scientific Advisory Committee (ESAC) and the IVIRMA Ethics Committee. AAP is a member of the Cryos International External Scientific Advisory Committee. In the last two years he has also undertaken consultancy for Carrot Fertility, and has delivered educational lectures for IBSA Institut Biochemique SA, and Mealis Group but all monies were paid to the University of Manchester. He is also the co-chair of the UKNEQAS Reproductive Sciences Advisory Committee, is a member of the Advisory Boards for the Progress Educational Trust (Charity Number 1139856) and the Science Media Centre (Charity Number 1140827) and Patron of the Fertility Alliance (Charity Number 1206323 (all unpaid). He is a member of the Guidelines Development Groups for the National Institute for Health and Care Excellence, and the World Health Organisation (again all unpaid).