TABLE 5.
Number of embryo transfers and ovarian tissue transplant at Japanese Society of Obstetrics and Gynecology‐certified assisted reproductive technology institutions that responded to the survey
| (a) ET | ||||||
|---|---|---|---|---|---|---|
| Institutions that performed ET, n (%) | Patients that underwent ET, n | Institutions with pregnancy outcomes, n (%) | ||||
| Pre | Post | Pre | Post | Pre | Post | |
| Embryos | 59 (59.5) | 93 (76.9)* | 167 | 402 | 42 (71.2) | 73 (78.5) |
| Oocytes | 11 (14.9) | 20 (22.5) | 15 | 38 | 7 (63.6) | 8 (40.0)* |
| (b) Ovarian tissue transplant | ||||||
|---|---|---|---|---|---|---|
| Institutions that performed transplant, n (%) | Patients that underwent transplant, n | Institutions with pregnancy outcomes, n (%) | ||||
| Pre | Post | Pre | Post | Pre | Post | |
| Ovarian tissue | 4 (14.8) | 6 (31.6) | 7 | 8 | 0 (0) | 1 (16.7) |
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 8 , 9 ; post, 2016–2019, i.e., from shortly before to after publication of the guidelines. *p < 0.05 vs. the percentage during the period of the previous survey, i.e., 2011 to 2015 (pre).
Abbreviation: ET, embryo transfer.