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Obesity prevalence among U.S. adults aged 20 and over 1997-2018

Prevalence of obesity among adults aged 20 and over in the U.S. from 1997 to 2018

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Release date

May 2019


United States

Survey time period

1997 to 2018

Number of respondents

around 35,000 households

Age group

20 years and older

Method of interview

Face-to-face interview

Supplementary notes

Figures from 1997 to 2005 were taken from the previous year's report and can be found here.

Estimates are age-adjusted using the projected 2000 U.S. population as the standard population and seven age groups: 20–29, 30–39, 40–49, 50–59, 60–69, 70–79, and 80 and over. NOTES: Data are based on household interviews of a sample of the civilian noninstitutionalized population. Beginning with 2012 data, the National Health Interview Survey transitioned to weights derived from the 2010 census. For 2006–2011 data, weights were derived from the 2000 census.

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Statistics on "Obesity and overweight"

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