Name Steward Organization Suggested Domain Suggested Domain Description Cde Group Classification
Age at Diagnosis GRDR Disease characterization
Including Alzheimer's Disease (AD)/AD-Related Dementias (ADRD) diagnosis and multiple chronic conditions (MCCs)
NIH CDEs
  • GRDR
    • Requirement
      • Required
    • Category
      • Diagnosis

# Definition Datatype
Prenatal At birth Less than 1 year Age 1 - 89 years 90+ years Age of diagnosis unknown Value List

# Permissible value Value meaning name
90+ years 90+ years
Age 1 - 89 years Age 1 - 89 years
Age of diagnosis Age of diagnosis
At birth At birth
Less than 1 year Less than 1 year
Prenatal Prenatal
unknown unknown

# Definition Tags
Prenatal At birth Less than 1 year Age 1 - 89 years 90+ years Age of diagnosis unknown Health

# Designation Tags
Age at Diagnosis Question
What was the participant's age in years when the formal diagnosis was made? Health

# Identifier Origin Version
GRDR027 GRDR N/A
Ys0dsd35Yoy NLM CDEs 12-02-2025-download