Infant mortality rates by maternal pre-pregnancy body mass and race U.S. 2019-2021

From 2019 to 2021, there were over 11 infant deaths per 1,000 live births among non-Hispanic Black women who were obese before pregnancy in the United States. This statistic illustrates the rate of infant mortality in the United States from 2019 to 2021, by maternal pre-pregnancy body mass index and race/ethnicity.

Rate of infant mortality in the United States from 2019 to 2021, by maternal pre-pregnancy body mass and race/ethnicity (per 1,000 live births)

Characteristic	Underweight	Normal weight	Overweight	Obese
-	-	-	-	-
-	-	-	-	-
-	-	-	-	-
-	-	-	-	-
-	-	-	-	-

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Release date

March 2024

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Region

North America, United States

Survey time period

From 2019 to 2021

Supplementary notes

0 figures indicate that rate does not meet National Center for Health Statistics standards of reliability; based on fewer than 20 deaths in the numerator.

Data are based on all infant death certificates that could be linked with the corresponding birth certificate, with 20,814 infant deaths in 2019, 19,578 infant deaths in 2020, and 19,928 infant deaths in 2021.

Prepregnancy BMI is defined as the mother’s weight before pregnancy divided by the mother’s height (inches) squared, multiplied by 703.
BMI under 18.5: Underweight
BMI 18.5 to 24.9: Normal or Healthy Weight
BMI 25.0 to 29.9: Overweight
BMI 30.0 and over: Obese

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