Birthweight centiles of live births at 20, 21, 22, or 23 weeks gestation
| Birth weight (g) | ||||
|---|---|---|---|---|
| 20 | 21 | 22 | 23 | |
| Eight live born infants did not have birth weight recorded. | ||||
| 98th centile | 431 | 558 | 665 | 730 |
| 50th centile | 323 | 400 | 490 | 580 |
| 2nd centile | 228 | 228 | 358 | 375 |
| n=283 | 20 | 36 | 80 | 160 |