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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
13213

(C2 Q1p/C2T Q1g) Attention -- Serial 7s (mocaser7)

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

Overview

Valid: 59
Range: -
Format:

Questions and instructions

Question pretext
[mocacomp]='1'
Categories
Value Category Cases
0 0 10
16.9%
1 1 12
20.3%
2 2 4
6.8%
3 3 5
8.5%
95 95 = Physical problem 9
15.3%
96 96 = Cognitive/behavior problem 11
18.6%
97 97 = Other problem 7
11.9%
98 98 = Verbal refusal 1
1.7%
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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