codebook / nhanes2018 / URDUNILC

URDUNILC // Nickel, Urine Comment Code

→ use this variable in analysis ← back to dataset

attributes

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

Coded values

codemeaning
0At or above detection limit
1below lower detection limit