Percentage of Infants Born at a Low Birth Weight

Low birth weight is a risk factor for poor lifetime health outcomes.

Data Source: National Vital Statistics System (NVSS)

Metrics Calculation

Percent low birth weight equals the percentage of all infants delivered that weigh less than 2,500 grams per specified group. Data is based on 100 percent of birth certificates filed in the U.S. each year. 2010 data are preliminary; based on approximately 100% of all 2010 U.S. births.

Additional Information

Exclusion Criteria: Records for which birth weight are unknown are excluded (<1% of all records for each year).

 

The 2010 data are preliminary; the data for 2000-2009 are final. Data for 2010 are from Hamilton BE, Martin JA, and Ventura SJ. “Births: Preliminary Data for 2010.” National Vital Statistics Reports; vol 60, no 2. Hyattsville, MD: National Center for Health Statistics. 2011. These data are available from: www.cdc.gov/nchs/data/nvsr/nvsr60/nvsr60_02.pdf and www.cdc.gov/nchs/data/nvsr/nvsr60/nvsr60_02_tables.pdf

 

This measure is calculated by the Centers for Disease Control and Prevention, National Center for Health Statistics from the birth data file.

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Percentage of Infants Born at a Low Birth Weight

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Percentage of Infants Born at a Low Birth Weight by Ethnicity

[ Measure 19 : Percentage of Infants Born at a Low Birth Weight | Ethnicity

Race and Hispanic origin are reported separately on birth certificates. Race categories are consistent with the 1977 Office of Management and Budget (OMB) standards. Persons of Hispanic origin may be of any race. For 2003-2009, varying numbers of states reported multiple-race data. The multiple race data for these states are bridged to the single-race category of the 1977 OMB standards.

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Percentage of Infants Born at a Low Birth Weight by Race and Ethnicity

] Measure 19 : Percentage of Infants Born at a Low Birth Weight | Race and Ethnicity

For more information on how race and ethnicity was defined, please see the Glossary under Help.

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Percentage of Infants Born at a Low Birth Weight by Age Group

Percentage of infants born at a low birth weight by Age Group

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Percentage of Infants Born at a Low Birth Weight by State

~ Measure 19 : Percentage of Infants Born at a Low Birth Weight | State

Click on a state to see data from that state.

White coloring indicates that no data are available for that state.

State:
Year:
Value: