national health and nutrition examination survey (nhanes)

How is NHANES Conducted?

NHANES involves several steps, starting with a household interview where participants provide demographic, socioeconomic, and health-related information. This is followed by a physical examination conducted in a mobile examination center (MEC), where participants undergo various tests, including blood and urine tests, dietary assessments, and physical measurements. The survey is conducted continuously, with data released in two-year cycles to ensure up-to-date information.

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