Table 1.
Classification of preterm births by gestational age
| Late Term | 41 weeks |
| Term | 39–40 weeks |
| Early Term | 37–38 weeks |
| Late Preterm | 34–36 weeks |
| Moderately Preterm | 32–33 weeks |
| Very Preterm | 28–31 weeks |
| Extremely Preterm | <28 weeks |
Classification of preterm births by gestational age
| Late Term | 41 weeks |
| Term | 39–40 weeks |
| Early Term | 37–38 weeks |
| Late Preterm | 34–36 weeks |
| Moderately Preterm | 32–33 weeks |
| Very Preterm | 28–31 weeks |
| Extremely Preterm | <28 weeks |