Name Steward Organization Suggested Domain Suggested Domain Description Cde Group Classification
Relative first degree total count NINDS Demographic information
Patient and caregiver demographic information
NIH CDEs
  • NINDS
    • Disease
      • Headache
        • Classification
          • Supplemental
        • Domain
          • Participant History and Family History
            • General Health History
    • Domain
      • Participant History and Family History
        • General Health History
    • Population
      • Adult
      • Pediatric

# Datatype
Number

# Definition
Count of the total number of first-degree relatives the participant/subject has

# Designation
Relative first degree total count

# Identifier Origin Version
Reltv1stDegTotlCt BRICS Variable Name N/A
C15997 NINDS 3
bPfV7cT0qoE NLM CDEs 12-02-2025-download