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. Author manuscript; available in PMC: 2022 Jun 1.
Published in final edited form as: J Pediatr. 2021 Mar 7;233:16–25.e1. doi: 10.1016/j.jpeds.2021.03.006

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