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Do you think a Cross Sectional study was the best study design for NHANES? What were...

Do you think a Cross Sectional study was the best study design for NHANES? What were the benefits of using a Cross Sectional study in NHANES scenario? Is another designs feasible? What are the limitations of NHANES study? Would you have done anything differently?

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Answer #1

NHANES

the national health and nutritional examination survey is a survey research program conducted by national centers for health statistics. It help to assess the health and nutritional status of adult and children and track the change over time .

The survey combines interview, physical examination and laboratory test.

all data NHANES is cross sectional, which limits the type of study that can be performed

limitation of cross sectional study

- the temporal relationship between exposure and disease outcomes can be unclear

- identification of case of long duration

Benefits of cross section study

- data on exposure status and health outcomes status are collected from each respondents at the same point in time

-they assess the needs of population

_ not repeated at the same individual

I think another study is feasible for NHANES

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