Table 4. Clinical pregnancy rate, delivery rate and gestational order according to the number of embryos transferred in fresh autologous IVF/ICSI cycles in 2013.
Number of
transferred
embryos
Total ET CPR/ET Deliveries
Number % Total (number) DR/ET Singleton
(%)
Twin
(%)
≥Triplets
(%)  
1 4,323 16.9 18.07% 583 13.49% 97.60 2.40 0.00
2 14,648 57.2 39.15% 4,652 31.76% 76.74 22.66 0.60
3 5,978 23.4 39.28% 1,891 31.63% 75.73 21.95 2.33
≥4 641 2.5 35.26% 164 25.59% 78.66 16.46 4.88
Total 25,590 100 35.50% 7,290 28.49% 78.19 20.71 1.09
ET= embryo transfers
CPR= clinical pregnancy rate
DR= delivery rate