Individual Physical Activity

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MEASURES REGISTRY USER GUIDE

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t The National Health Examination Survey (NHANES) is a combined surveillance program led by the National Center for Health Statistics (NCHS) and Centers for Disease Control and Prevention (CDC) that tracks health indicators in the U.S. population. NHANES has collected data every 2 years since 1999 and uses a complex, multistage, probability sampling design of all ages to adequately characterize the U.S. population.