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


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Location: United States
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Topic: Low birthweight
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Format: US Map
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Low birthweight: United States, 2019

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• In 2019, 1 in 12 babies (8.3% of live births) was low birthweight in the United States. 
• Between 2009 and 2019, the rate of infants born low birthweight in the United States increased more than 1%. 

Footnotes

  • Low birthweight is less than 2500 grams (5 1/2 pounds).

Source

  • National Center for Health Statistics, final natality data.
  • Retrieved January 18, 2022, from www.marchofdimes.org/peristats.