To ask Her Majesty’s Government with regard to (1) oocytes frozen for a patient's own use in the UK, and (2) frozen oocytes used for the purpose of donation to another woman, for each year from 2008 to 2015 (a) how many oocytes were frozen and how many have been thawed for the purposes of treatment by in vitro fertilisation; (b) of those which were thawed, how many were successfully fertilised and appeared to develop normally; and (c) of those, how many were transferred to a uterus, and how many of those transfers resulted in (I) a pregnancy, (ii) miscarriage, or (iii) live birth.
8 November 2016
The Human Fertilisation and Embryology Authority has provided data which can be found in the attached document. Table 1 shows the numbers of oocytes that have been frozen. Table 2 shows where a patient’s own oocytes have been thawed for their own use. Table 3 shows where the patient has used thawed donated oocytes and the outcomes.
Table 1 is below. Tables 2 and 3 can be found in the attached document.
Table 1 - the numbers of oocytes that have been frozen.
Year of Treatment
Number of eggs frozen for patient’s own use
Number of eggs frozen for donation
2015 (Mid year for treatments)