Maternal & Child Health Data

Preterm Births, 2018

Definition: Preterm births gives the percentage of births to women in 2018 where the gestational age was less than 37 weeks. This includes all births to women aged 15–64 occurring within the United States to residents and nonresidents.

Source: Martin, J. A., Hamilton, B. E., Osterman, M .J. K., & Driscoll, A. K. (2019). Births: Final data for 2018. Supplemental tables. Table I-19. Preterm births, by race and Hispanic origin of mother: United States, each state and territory, 2018. National Vital Statistics Reports, 68(13).