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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
16226

4. MCI core clinical criteria (loc_mcicrit)

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

Overview

Valid: 51
Range: -
Format:

Questions and instructions

Question pretext
[demented] = '0'
Categories
Value Category Cases
1 Clinical concern about decline in cognition compared to participant's prior level of lifelong or usual cognitive function (e.g. 32
62.7%
2 Impairment in one or more cognitive domains 7
13.7%
3 Largely preserved functional independence OR functional dependence that is not related to cognitive decline (e.g. 12
23.5%
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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