Predicted percentage survival to 28 days after birth by birth weight and gestational age for singleton births admitted to a neonatal care unit
| Gestation at birth (completed weeks) | ||||||||||
| 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
| Birth weight (g) | ||||||||||
| 2200–2299 | 98% | |||||||||
| 2100–2199 | 98% | |||||||||
| 2000–2099 | 97% | 98% | ||||||||
| 1900–1999 | 97% | 98% | ||||||||
| 1800–1899 | 98% | 99% | ||||||||
| 1700–1799 | 97% | 98% | 99% | |||||||
| 1600–1699 | 97% | 98% | 99% | |||||||
| 1500–1599 | 95% | 97% | 98% | 99% | ||||||
| 1400–1499 | 96% | 97% | 98% | 99% | ||||||
| 1300–1399 | 93% | 96% | 97% | 98% | 99% | |||||
| 1200–1299 | 94% | 96% | 98% | 98% | 99% | |||||
| 1100–1199 | 90% | 94% | 96% | 98% | 98% | 99% | ||||
| 1000–1099 | 91% | 94% | 96% | 98% | 98% | 99% | ||||
| 900–999 | 85% | 91% | 94% | 96% | 98% | 98% | ||||
| 800–899 | 76% | 85% | 90% | 94% | 96% | 97% | ||||
| 700–799 | 47% | 62% | 75% | 84% | 90% | 93% | 96% | |||
| 600–699 | 43% | 59% | 72% | 81% | 88% | 92% | ||||
| 500–599 | 38% | 53% | 66% | 77% | ||||||
| 400–499 | 29% | 43% | 56% | |||||||
| 300–399 | 17% | 27% | 40% | |||||||