1997美國地區人工協助生殖之統計分析

1997 Program Profile
Program Characteristics Type of ART a ART Patient Diagnosis
Total Clinics 335 IVF 93% Tubal Factor 27%
SART Member? 96% GIFT 4% Endometriosis 14%
Single women? 76% ZIFT 2% Uterine factor 2%
Gestational carries? 37% Combinationb 1% Ovulatory dysfunction 16%
Donor eggs program? 78% 　 　 Male factor 23%
Sharing of donor eggs? 23% With ICSI 35% Other factors 8%
　 　 Unstimulated <1% Unexplained 10%
1997 ART Pregnancy Success Rates
Type of Cycle

Age of Women
　 <35 35-37 38-40 >40
Fresh Embryos From Nondonor Eggs
Number of cycles 24,581 12,733 10,997 6,691
Pregnancies per 100 cycles 35.7 31.3 22.8 13.2
Live births per 100 cyclesc 30.7 25.5 17.1 7.6
Live births per 100 retrievalsc 33.8 29.6 20.9 9.9
Live births per 100 transfers c 35.9 31.4 22.5 10.9
Cancellations per 100 cycles 9.3 14.0 18.3 22.9
Average number embryos transferred 3.7 3.8 3.9 4.0
Twin gestations per 100 pregnancies 30.7 26.4 21.8 15.3
Triplet or more gestations per 100
   pregnancies		 13.7 11.3 6.8 2.8
Multiple live birth per 100 live birthsc 43.0 36.8 28.4 19.0
Frozen Embryos From Nondonor Eggs
Number of transfers 4,862 2,144 1,385 774
Live births per 100 transfers c 21.3 18.6 14.5 10.0
Average number embryos transferred 3.5 3.4 3.5 3.6
Donor Eggs
Number of fresh transfers 547 480 846 2,625
Live births per 100 fresh transfers c 40.8 41.9 36.6 40.2
Number of frozen transfers 177 134 213 958
Live births per 100 frozen transfers c 16.4 22.4 19.3 23.6
Average number embryos transferred
  (fresh and frozen)		 3.5 3.6 3.7 3.7
a Includes only fresh nondonor egg cycles.
b Combination of fresh, nondonor IVF, GIFT, and ZIFT procedures.
c A multiple birth is counted as one live birth.
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