Table 4. Clinical pregnancy rate, delivery rate and gestational order according to the number of embryos transferred, OD 2010
Number of
transferred
embryos
Total ET CPR/ET Deliveries
number % Total (number) Singleton Twin ≥Triplets
1 164 3.4% 25.0% 33 100.0% 0.0% 0.0%
2 2,779 58.3% 48.5% 1,113 75.2% 24.3% 0.5%
3 1,606 33.7% 47.0% 620 66.6% 28.5% 4.8%
≥4 214 4.5% 44.9% 74 66.2% 27.0% 6.8%
Total 4,763 100.0% 47.0% 1,840 72.4% 25.4% 2.2%

ET= embryo transfers
CPR=clinical pregnancy rate