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Mean body weight, weight, waist circumference, and body mass index among adults : United States, 1999–2000 through 2015–2016
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    Objectives—This report presents trends in mean weight, height, waist circumference, and body mass index (BMI) among adults in the United States from 1999–2000 through 2015–2016. Methods—Data were obtained from physical examinations of a nationally representative sample of adults aged 20 and over in the National Health and Nutrition Examination Surveys during 1999–2016. The tables present means and standard errors of the mean for weight (n = 45,047), height (n = 46,481), waist circumference (n = 43,169), and BMI (n = 44,859) separately for men and women overall, by age group, and by race and Hispanic origin for each 2-year survey period. Changes in these body measures over time were evaluated using linear regression. Results—Since 1999, mean weight, waist circumference, and BMI increased for all age groups, for non-Hispanic white and Mexican-American men and women, and for non-Hispanic black women. Among non-Hispanic black men, weight, waist circumference, and BMI increased until 2005–2006 and then remained level. No change in height was seen over time except for a decrease in crude estimates among all women, a decrease among men and women aged 40–59, and an increase in both crude and age-adjusted estimates of mean height for men followed by a decrease after 2003–2004. No significant trends were seen in any of the four body measures for non-Hispanic Asian men and women (data available only for 2011–2016). Conclusions—Mean weight, waist circumference, and BMI in adults have increased over the past 18 years. Conversely, mean height did not change in many demographic subgroups and, in some groups, was lower in 2015–2016 than in 1999–2000. Suggested citation: Fryar CD, Kruszon-Moran D, Gu Q, Ogden CL. Mean body weight, height, waist circumference, and body mass index among adults: United States, 1999–2000 through 2015–2016. National Health Statistics Reports; no 122. Hyattsville, MD: National Center for Health Statistics. 2018. CS298742
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