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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
14815

12j. Delusions - Does the participant have fixed, idiosyncratic beliefs that are not true? For example, insisting that others are trying to harm them or steal from them? Have they said that family members or staff are not who they say they are, or that th (bedel)

Data file: UDSv4TemplateForXMLD_2026-04-14_0731.REDCap.xml

Overview

Valid: 55
Range: -
Format:

Questions and instructions

Question pretext
[decclbe] = '1'
Categories
Value Category Cases
0 No 7
12.7%
1 Yes 26
47.3%
9 Unknown 22
40%
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
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