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Body composition data for individuals eight years of age and older, U.S. population, 1999-2004
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February 2010
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Description:"Objectives This report presents body composition data from whole body dual energy x-ray absorptiometry scans for persons 8 years of age and older who participated in the National Health and Nutrition Examination Survey (NHANES) 1999-2004. Valid total body measurements were obtained on 16,973 individuals. Through the use of multiple imputation, a useable sample of 22,010 individuals was achieved for analysis. Measures for the total body and regions of the body include total mass, fat mass, percentage fat, lean soft tissue (excluding bone mineral content), and fat-free mass (including bone mineral content). Methods Means, standard errors, and selected percentiles were calculated for the total body and for regions of the body by sex, race and ethnic, and age population subgroups. Standard errors of the mean were estimated by Taylor Series Linearization, which incorporates sample weights and accounts for the NHANES complex sample design. Results Females had higher percentage body fat and fat mass than males. After age 11 years, males had higher lean tissue and fat-free mass than females. Percentage body fat was lowest at ages 16-19 years among males and at ages 8-15 years among females. Among males, non-Hispanic white persons had greater fat mass than either Mexican American or non-Hispanic blacks. Among females, non-Hispanic black persons had greater fat mass than either Mexican American or non-Hispanic whites. Mexican-American males and females had less lean soft tissue than either non-Hispanic white or non-Hispanic black males and females. Among both males and females, lean soft tissue and fat-free." - p. 1
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Content Notes:"by Lori G. Borrud, Dr.P.H., Katherine M. Flegal, Ph.D., Anne C. Looker, Ph.D., National Center for Health Statistics, Division of Health and Nutrition Examination Surveys; James E. Everhart, M.D., M.P.H., National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases; Tamara B. Harris, M.D., M.S., National Institutes of Health, National Institute on Aging; and John A. Shepherd, Ph.D., University of California, San Francisco, Department of Radiology and Biomedical Imaging" - p. 1
Includes bibliographical references (p. 6-7).
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