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Uniform Data Set version 4
UDSv4 - Template

United States
Reference ID
USDv4
Producer(s)
National Alzheimer’s Coordinating Center (NACC) and the NIA-funded ADRC network
Collections
Clinical Trial
Metadata
DDI/XML JSON
Created on
Jul 02, 2026
Last modified
Jul 07, 2026
Page views
11402
  • Study Description
  • Data Dictionary
  • Data files
  • UDSv4TemplateForXMLD_2026-04-14_0731.REDCap.xml
Variable Groups
  • Form Header
  • Custom Instrument
  • A1 Participant Demographics
  • A1a Social Determinants of Health
  • A2 Co-participant demographics
  • A3 Participant Family History
  • A4 Participant Medications
  • A4a ADRD Specific Treatments
  • A5-D2: Participant Health History/Clinician-assessed Medical Conditions
  • B1 Vital Signs and Anthropometrics
  • B3 Unified Parkinson's Disease Rating Scale (UPDRS) - Motor Exam
  • B4 CDR Dementia Staging Instrument
  • B5 Neuropsychiatric Inventory Questionnaire (NPIQ)
  • B6 Geriatric Depression Scale
  • B7 Functional Assessment Scale (FAS)
  • B8 Neurological Examination Findings
  • B9 Clinician Judgment Of Symptoms
  • C2/C2T Neuropsychological Battery Scores
  • D1a Clinical Syndrome
  • D1b Etiological Diagnosis and Biomarker Support

Variable Groups

Variable group: B7 Functional Assessment Scale (FAS)
Variables 18
b7_functional_assessment_sc
ale_fas_complete
Complete?
b7not
0d2. If 'B7 Functional Assessment: FAS' not submitted, specify reason
bills
1. Writing checks, paying bills, or balancing a checkbook
events
7. Keeping track of current events
frmdateb7
0a. B7 Functional Assessment: FAS - Form date
games
4. Playing a game of skill such as bridge or chess,  working on a hobby
initialsb7
0b. B7 Functional Assessment: FAS - Examiner's initials
langb7
0c. B7 Functional Assessment: FAS - Language
mealprep
6. Preparing a balanced meal
modeb7
0d. B7 Functional Assessment: FAS - In-person, remote, or not completed?
payattn
8. Paying attention to and understanding a TV program, book, or magazine
remdates
9. Remembering appointments, family occasions, holidays, medications
rmmodeb7
0d1a. What modality was used to collect this remote 'B7 Functional Assessment: FAS' form?
rmreasb7
0d1. If 'B7 Functional Assessment: FAS' form was completed remotely, specify reason
shopping
3. Shopping alone for clothes, household necessities, or groceries
stove
5. Heating water, making a cup of coffee, turning off  the stove
taxes
2. Assembling tax records, business affairs, or other papers
travel
10. Traveling out of the neighborhood, driving, or arranging  to take public transportation
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