| Table 4. Clinical pregnancy rate, delivery rate and gestational order according to the number of embryos transferred in Autologous FET cycles. in 2021. | |||||||||||||
| Number of embryos transferred |
Embryo transfers¥ |
Clinical pregnancies |
Embryo transfers* | Deliveries | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number | % | Number | % | Number | Number of deliveries | Delivery rate per embryo transfer* (%) |
Singleton (n) | Singleton (%) | Twin (n) |
Twin (%) |
≥Triplets (n) | ≥Triplets (%) | |
| 1 | 8,415 | 53.6 | 2,951 | 35.1 | 8,151 | 2,114 | 25.9 | 2083 | 98.5 | 31 | 1.5 | 0 | 0.0 |
| 2 | 6,875 | 43.8 | 2,972 | 43.2 | 6,583 | 2,148 | 32.6 | 1708 | 79.5 | 429 | 20.0 | 11 | 0.5 |
| ≥3 | 412 | 2.6 | 160 | 38.8 | 402 | 118 | 29.4 | 102 | 86.4 | 13 | 11.0 | 3 | 2.5 |
| Total | 15,702 | 100 | 6,083 | 38.7 | 15,136 | 4,380 | 28.9 | 3,893 | 88.9 | 473 | 10.8 | 14 | 0.3 |
¥ Excludes vitrified-warmed oocyte, PGT and Freeze all cycles
* Excluding cases of pregnancies with loss of follow-up (LFU).