National Health and Nutrition Examination Survey - Body Composition Procedures Manual (Paperback)

Body composition will be evaluated in the current NHANES by anthropometry, dual energy X-ray absorptiometry (DXA) and bioelectrical impedance analysis (BIA). These methods will be used to (1) monitor secular trends in overweight prevalence; (2) describe the prevalence of obesity; and (3) examine the relationship between overweight and obesity and other examination measures, including blood pressure, glucose intolerance, and a battery of indicators for cardiovascular disease. Concurrent measurement of BIA and DXA will allow development of equations to estimate body composition using BIA from a national sample. This component will use two methods to assess body composition - DXA and BIA.