Gestation at diagnosis | Survival N | Perinatal death (IUD + NND) N | Survival % | Perinatal death (IUD + NND) % |
---|---|---|---|---|
22–23 weeks | 49 | 69 | 41% | 59% |
24–25 weeks | 52 | 42 | 55% | 45% |
26–27 weeks | 126 | 22 | 85% | 15% |
28–29 weeks | 188 | 15 | 93% | 7% |
30–31 weeks | 164 | 2 | 99% | 1% |