Health and Nutritional Status
Since 1971, the National Center for Health Statistics had been assessing the health and nutritional status of both children and adults in the United States, through periodic National Health and Nutritional Examination Survey (NHANES) surveys. These surveys are an invaluable resource to epidemiological and public health research; the surveys can be used to determine the prevalence of major diseases and risk factors, to assess nutrition and health promotion, and to guide public health policy.
For purposes of this discussion, you are asked to answer the three following questions:
Does BMI vary significantly between boys and girls?
Does BMI vary significantly among the racial/ethnic groups?
Is there any trend to BMI with age?