2003 ART Pregnancy Success Rates

Type of Cycle

< 35 35-37 38-40 41-42 *
Fresh Embryos from Nondonor Eggs
Number of cycles 90 30 29 10
Percentage of cycles resulting in pregnancies 50 60 58.6 3/10
Percentage of cycles resulting in live birth 44.4 43.3 34.5 2/10
Percentage of retrievals resulting in live births 47.1 44.8 37 2/8
Percentage of transfers resulitng in live births 51.3 50 37 2/8
Percentage of transfers resulitng in singleton live births 24.4 26.9 22.2 2/8
Percentage of cancellations 5.6 3.3 6.9 2/10
Average number of embryos transferred 3.7 4.1 4.2 3.9
Percentage of pregnancies with twins 33.3 5/18 4/17 1/3
Percentage of pregnancies with triplets 20 4/18 0/17 0/3
Percentage of live births having multiple infants 52.5 6/13 4/10 0/2
Frozen Embryos from Nondonor Eggs
Number of transfers 48 10 5 4
Number of transfers resulting in live births 33.3 3/10 1/5 1/4
Average number of embyos transfered 4.4 3.1 4.4 5.0

Donor Eggs (All Ages Combined) Fresh Embryos Thawed Embryos
Number of transfers 18 29
Percentage of transfers resulting in live births 55.6 44.8
Average number of embryos transfered 3.7 4.6

* When fewer than 20 cycles using fresh, non-donor eggs or embryos are reported in any one category, live birrth rates are shown as fractions.

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