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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
13788

8. What is your primary language? (Primary language is defined as the predominant language you have used throughout your life. Please take into consideration first language learned and used as well as the length of use.) (predomlan)

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

Overview

Valid: 55
Range: -
Format:

Questions and instructions

Question pretext
[packet]='I' OR [packet]='I4'
Categories
Value Category Cases
1 English 1
1.8%
2 Spanish 9
16.4%
3 Chinese dialect 22
40%
8 Other 23
41.8%
9 Don't know 0
0%
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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