Name Steward Organization Suggested Domain Suggested Domain Description Cde Group Classification
23. How often do you have contact with close friends either in person, by phone, mail, or email (e.g., any online interaction)? NACC Social determinants of health
Social determinants of health (e.g., financial, education, and living arrangements), but not environmental data (e.g., weather data, pollutant data)
 Other NIA-funded studies
  • ▼ NACC
    • ▼ Uniform Data Set
      • ▼ Form name- A1a: Social Determinants of Health Optional Form
        • ▼ Packet- Initial Visit Packet
          • ▼ Section- Social connections, activities, and environment
            • Variable name- friendcomm

# Datatype

UUID: f93da944-4b83-5bd4-85c0-ebf95809ffd7

Value List

# Permissible value Value meaning name

UUID: 8d108202-fa36-5d43-928d-414b422e3182

0 Do not have close friends

UUID: f42747b2-7673-5cf7-a9c6-e2af00017ea2

1 Once a or less

UUID: 69308e33-910e-51df-bf0c-4199da4519b3

2 Several times a

UUID: 3330cdd0-f134-5568-a225-21ef19ad0136

3 Several times a

UUID: b3b63f49-f048-57ad-ab35-3284c27e0d66

4 Several times a

UUID: eace6592-b3c5-5534-8eee-7dc2cd3cac86

5 Everyday or almost everyday

UUID: 270c319e-29f9-5d1a-a20e-40bc692a328e

8 Prefer not to answer

# Identifier Origin Version

UUID: 6359e8a2-aa01-5f47-b417-3b11225aa4d8

UDS_a1a_Initial Visit Packet_friendcomm NACC-source_dataset+form_name+packet+var_name NACC_uds-v4-ivp-ded-11122025