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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
13874

12. Gait (gait)

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

Overview

Valid: 0
Range: -
Format:

Questions and instructions

Question pretext
[pdnormal] <> '1'
Categories
Value Category
0 Normal
1 Walks slowly; may shuffle with short steps, but no festination (hastening steps) or propulsion.
2 Walks with difficulty, but requires little or no assistance; may have some festination, short steps, or propulsion.
3 Severe disturbance of gait requiring assistance.
4 Cannot walk at all, even with assistance.
8 Untestable
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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