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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
14364

IVP Q8./FVP Q9. Compared to 10 years ago, would you say that the participant's memory is much worse, a little worse, the same, a little better, or much better? (inmemten)

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

Overview

Valid: 59
Range: -
Format:

Questions and instructions

Question pretext
[modea2] <> '0'
Categories
Value Category Cases
1 Much better 15
25.4%
2 A little better 15
25.4%
3 The same 14
23.7%
4 A little worse 2
3.4%
5 Much worse 1
1.7%
9 Unknown 12
20.3%
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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