Home / Central Data Catalog / USDV4 / variable [UDSv4Template]
central

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
16089

(C2 Q1s/C2T Q1j) Abstraction (mocaabst)

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

Overview

Valid: 58
Range: -
Format:

Questions and instructions

Question pretext
[mocacomp]='1'
Categories
Value Category Cases
0 0 9
15.5%
1 1 7
12.1%
2 2 5
8.6%
95 95 = Physical problem 8
13.8%
96 96 = Cognitive/behavior problem 7
12.1%
97 97 = Other problem 7
12.1%
98 98 = Verbal refusal 15
25.9%
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.
Back to Catalog