Natural conception | OI without ART | Conventional IVT-ET | ICSI | |||||
---|---|---|---|---|---|---|---|---|
N | % | N | % | N | % | N | % | |
Pregnancies | N = 90,506 | N = 3939 | N = 1476 | N = 1671 | ||||
Singleton pregnancy | 88,873 | 99.3 | 3702 | 95.1 | 1407 | 95.7 | 1586 | 96.0 |
Multiple pregnancies | 625 | 0.7 | 189 | 4.9 | 63 | 4.3 | 66 | 4.0 |
(Missing) | 1008 | 48 | 6 | 19 | ||||
Fetus/Neonate born ≥22 weeks | N = 89,576 | N = 4067 | N = 1518 | N = 1699 | ||||
Number of fetuses | ||||||||
Singletons | 88,337 | 98.6 | 3682 | 90.6 | 1393 | 91.8 | 1570 | 92.4 |
Multiples | 1209 | 1.4 | 383 | 9.4 | 125 | 8.2 | 129 | 7.6 |
(Missing) | 30 | 2 | 0 | 0 | ||||
Fetal presentation | ||||||||
Cephalic | 85,331 | 96.4 | 3726 | 93.2 | 1345 | 90.7 | 1516 | 90.8 |
Non-cephalic | 3179 | 3.6 | 273 | 6.8 | 138 | 9.3 | 153 | 9.2 |
(Missing) | 1066 | 68 | 35 | 30 | ||||
Sex of neonate | ||||||||
Male | 45,942 | 51.3 | 2062 | 50.7 | 805 | 53.0 | 850 | 50.0 |
Female | 43,608 | 48.7 | 2003 | 49.3 | 713 | 47.0 | 849 | 50.0 |
(Missing) | 26 | 2 | 0 | 0 |