codebook / nhanes2018 / MCD093

MCD093 // In what year did {you/SP} receive {your/his/her} first transfusion?

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attributes

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

Coded values

codemeaning
1Before 1972
21972 - 1991
31992 to present