Table 7. Clinical pregnancy rate, delivery rate and gestational order according to the number of embryos transferred in FET(OD) cycles in 2012.
Number of transferred embryos Total ET CPR/ET Deliveries
Number % Total (number) Singleton Twin ≥Triplets
1 290 13.2% 25.9% 56 96.6% 5.4% 0.0%
2 1,420 64.8% 38.5% 407 76.7% 32.1% 0.3%
3 453 20.7% 39.3% 144 63.2% 33.3% 3.5%
≥4 30 1.4% 36.7% 9 55.6% 33.3% 11.1%
Total 2,193 100.0% 37.0% 616 78.8% 24.0% 1.1%

ET= embryo transfers
CPR= clinical pregnancy rate