| Supplementary Table 3. Clinical pregnancy rate, delivery rate and gestational order according to the number of embryos transferred in fresh and frozen oocyte donation cycles in 2017 | ||||||||||||
| Number of transferred embryos | Total embryo transfer | Clinical pregnancy | Deliveries | |||||||||
| Number | % | Number | % | Number of deliveries | Delivery rater per embryo transfer (%) | Singleton (n) | Singleton (%) | Twin (n) | Twin (%) | ≥Triplets (n) | ≥Triplets (%) | |
| 1 | 3,550 | 28.0 | 1,427 | 40.2 | 1,033 | 29.1 | 1,013 | 98.1 | 19 | 1.8 | 1 | 0.1 |
| 2 | 7,409 | 58.5 | 3,499 | 47.2 | 2,585 | 34.9 | 1,803 | 69.7 | 772 | 29.9 | 10 | 0.4 |
| 3 | 1,674 | 13.2 | 825 | 49.3 | 637 | 38.1 | 376 | 59.0 | 239 | 37.5 | 22 | 3.5 |
| ≥4 | 30 | 0.3 | 13 | 43.3 | 9 | 30.0 | 7 | 77.8 | 2 | 22.2 | 0 | 0.0 |
| Total | 12,663 | 100.0 | 5,764 | 45.5 | 4,264 | 33.7 | 3,199 | 75.0 | 1,032 | 24.2 | 33 | 0.8 |