Percentage of Births Born Preterm by State

1 Babies born prior to 37 weeks of pregnancy (gestation).

Source: https://wonder.cdc.gov

Differences by state do not take into account other state specific population characteristics that may affect the level of the birth characteristic. When the number of events is small, differences by state may be unreliable due to instability in rates.

 

Page last reviewed: February 9, 2021