March of Dimes March of Dimes Peristats

Maternal & Infant Health Research Registries

During the pandemic, tracking health outcomes is essential to improving care, developing policies and understanding the impact of this pandemic on maternal and infant health. Learn more about global research and registries that are tracking the data to ensure the health of mothers and babies.

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COVID-19 Resources & Literature

A resource compiling up-to-date published literature on COVID-19 relating to mothers and babies. We have gathered scientifically sound research to help guide further studies or keep you up to date with the maternal child health population and COVID-19.

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United States


Find maternal and infant health data on a state level, or by county or city. Narrow your results or compare with another region.
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Location: United States
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Topic: Late preterm birth
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Format: US Map - View Table
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Late preterm birth: United States, 2018

Percent of live births
RegionPercent
Alabama8.9
Alaska6.9
Arizona7.1
Arkansas8.5
California6.5
Colorado6.8
Connecticut6.8
Delaware6.8
District of Columbia6.7
Florida7.3
Georgia8.1
Hawaii7.6
Idaho6.9
Illinois7.7
Indiana7.5
Iowa7.3
Kansas6.9
Kentucky8.4
Louisiana9.4
Maine6.4
Maryland7.1
Massachusetts6.5
Michigan7.3
Minnesota6.6
Mississippi10.1
Missouri7.9
Montana6.9
Nebraska7.8
Nevada7.4
New Hampshire6.0
New Jersey6.9
New Mexico7.3
New York6.4
North Carolina7.4
North Dakota7.1
Ohio7.4
Oklahoma8.4
Oregon5.9
Pennsylvania6.8
Rhode Island6.3
South Carolina8.1
South Dakota7.3
Tennessee7.9
Texas7.9
United States7.3
Utah7.2
Vermont6.4
Virginia6.8
Washington6.2
West Virginia8.7
Wisconsin7.3
Wyoming7.5
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Footnotes

  • Late preterm is between 34 and 36 weeks gestation.

Source

  • National Center for Health Statistics, final natality data.
  • Retrieved September 21, 2020, from www.marchofdimes.org/peristats.