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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
13285

16. Mode of onset for motor symptoms: Indicate the mode of onset for the most prominent motor problem that is causing the participant's complaints and/or affecting the participant's function. (momode)

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

Overview

Valid: 54
Range: -
Format:

Questions and instructions

Question pretext
[decclmot] = 1
Categories
Value Category Cases
1 Gradual 22
40.7%
2 Subacute 8
14.8%
3 Abrupt 6
11.1%
4 Other 15
27.8%
99 Unknown 3
5.6%
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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