| Table 3. Clinical pregnancy rate, delivery rate and gestational order in elective and non-elective SET and DET in fresh autologous IVF/ICSI in 2021. | |||||||||||||
| Type of transfer | 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 (%) | |
| oSET | 3,309 | 59.0 | 636 | 19.2 | 3,262 | 440 | 13.5 | 437 | 99.3 | 3 | 0.7 | 0 | 0 |
| eSET | 2,296 | 41.0 | 894 | 38.9 | 2,252 | 683 | 30.3 | 672 | 98.4 | 10 | 1.5 | 1 | 0.1 |
| oDET | 3,872 | 58.5 | 1,149 | 29.7 | 3,766 | 850 | 22.6 | 696 | 81.9 | 154 | 18.1 | 0 | 0 |
| eDET | 2,746 | 41.5 | 1,280 | 46.6 | 2,648 | 971 | 36.7 | 746 | 76.8 | 222 | 22.9 | 3 | 0.3 |
* excluding cases of pregnancies with loss to follow-up (LFU). eSET, elective single-embryo transfers; oSET, transfer of only one embryo because there are no more embryos available for transfer; eDET, elective double-embryo transfers; oDET, the transfer of only two embryos because there are no more embryos available for transfer.