Name Steward Organization Suggested Domain Suggested Domain Description Cde Group Classification
Digit Symbol Substitution B51 ACTIVE Health assessment
e.g., Activities of Daily Living (ADL), Instrumental ADL, cognitive function, etc.
Studies in LINKAGE
  • ACTIVE
    • Study name- DS08 Digit Symbol Data
      • Variable name- DS_B51

# Datatype Datatype value list datatype
Value List Number

# Permissible value Value meaning name
1 Correct
2 Incorrect
3 Attempted or missing
4 Not attempted or missing
-1 -1 NA
-2 -2 NA
-3 UNDOCUMENTED CODE
-7 Refused
-8 DK
-9 skipped or missing

# Identifier Origin Version
DS08 Digit Symbol Data_DS_B51 ACTIVE-study_name+variable_name ACTIVE ICPSR 38821