The reasoning: LBW and its determinants
| Term | Definition |
|---|---|
| LBW | Birth weight < 2,500 g (regardless of gestation) |
| VLBW | < 1,500 g |
| ELBW | < 1,000 g |
| Preterm | < 37 completed weeks (very preterm < 32; extremely preterm < 28) |
| SGA | Birth weight < 10th centile for gestational age (often IUGR) |