Table 1 Examples of data elements in NACC
VariableName | Form | VariableType | ShortDescriptor | DataType | AllowableCodes |
|---|---|---|---|---|---|
EDUC | a1 | Original UDS question | Years of education | Numeric cross-sectional | 0 - 36; 99 = Unknown |
NORMCOG | d1 | Original UDS question | Normal cognition and behavior | Numeric longitudinal | 0 = No; 1 = Yes |
NACCVASC | np | NACC Derived Variable | Ischemic, hemorrhagic, or vascular pathology present | Numeric cross-sectional | 0 = No; 1 = One or more vascular pathology; 9 = Unknown |