codebook / nhanes2018 / HSQ571

HSQ571 // During the past 12 months, that is, since (DISPLAY CURRENT MONTH, DISPLAY LAST YEAR), (have you/has SP) donated blood?

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attributes

datasetnhanes2018 · NHANES 2017-2018 Cycle
typecategorical
role
data fileHSQ_J
keywords

Coded values

codemeaning
1Yes
2No