Preterm Births

Birth Data Maps

Key points

  • Find the percentage of all live births that were preterm for each state in map and table formats.
  • Preterm births happen before the 37th week of pregnancy
An outline of a baby in utero against a backdrop of a U.S. map.

Percentage of all live births that were preterm

Sources

The CDC WONDER Online Database is the source of the 2023 National Vital Statistics System birth data featured in Stats of the States.

Differences by state do not account for state specific population characteristics that may affect birth characteristics.

When the number of births is small, differences by state may be unreliable due to instability in rates.

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Content Source:
National Center for Health Statistics