Predicted percentage survival to 28 days after birth by birth weight and gestational age for multiple births where survival-focused care was initiated
| Gestation at birth (completed weeks) | ||||||||||
| 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
| Birth weight (g) | ||||||||||
| 2200–2299 | 99% | |||||||||
| 2100–2199 | 99% | |||||||||
| 2000–2099 | 99% | 99% | ||||||||
| 1900–1999 | 99% | 99% | ||||||||
| 1800–1899 | 99% | 99% | ||||||||
| 1700–1799 | 99% | 99% | 99% | |||||||
| 1600–1699 | 99% | 99% | 99% | |||||||
| 1500–1599 | 98% | 99% | 99% | 99% | ||||||
| 1400–1499 | 98% | 99% | 99% | 99% | ||||||
| 1300–1399 | 97% | 98% | 99% | 99% | 99% | |||||
| 1200–1299 | 97% | 98% | 98% | 99% | 99% | |||||
| 1100–1199 | 94% | 96% | 97% | 98% | 99% | 99% | ||||
| 1000–1099 | 94% | 96% | 97% | 98% | 99% | 99% | ||||
| 900–999 | 88% | 93% | 95% | 97% | 98% | 98% | ||||
| 800–899 | 78% | 87% | 91% | 94% | 96% | 97% | ||||
| 700–799 | 42% | 60% | 74% | 84% | 89% | 93% | 95% | |||
| 600–699 | 35% | 53% | 68% | 79% | 86% | 91% | ||||
| 500–599 | 27% | 43% | 59% | 72% | ||||||
| 400–499 | 17% | 30% | 45% | |||||||
| 300–399 | 9% | 16% | 27% | |||||||