TABLE 3.

Number of institutions that set age and indication limits for cryopreservation in childhood, adolescent, and young adult cancer patients

	Institutions with age limits, n (%)		Institutions with indication restrictions, n (%)		Not permitted in case of a disease requiring a hysterectomy, n
	Pre	Post	Pre	Post	Pre	Post
Embryos	52 (51.5)	70 (44.0)	34 (34.7)	63 (39.6)	16	41
Oocytes	46 (63.0)	63 (52.5)	26 (35.1)	47 (39.1)	15	34
Ovarian tissue	19 (67.8)	22 (48.9)	15 (57.7)	23 (51.1)	10	11

Pre, 2011–2015, i.e., before publication of the Japan Society of Clinical Oncology Clinical Practice Guidelines 2017 for Fertility Preservation in Childhood, Adolescent, and Young Adult Cancer Patients; post, 2016–2019, ⁸ , ⁹ i.e., from shortly before to after publication of the guidelines.