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

14872

9. Behavior, Comportment, & Personality2 (comport)

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

Overview

Valid: 0

Range: -

Format:

Questions and instructions

Categories

Value	Category
0	None = 0 Socially appropriate behaviorNone = 0 Socially appropriate behavior
0.5	Questionable = 0.5 Questionable changes in comportment, empathy, appropriateness of actionsQuestionable = 0.5 Questionable changes in comportment, empathy, appropriateness of actions
1	Mild = 1 Mild but definite changes in behaviorMild = 1 Mild but definite changes in behavior
2	Moderate = 2 Moderate behavioral changes, affecting interpersonal relationships and interactions in a significant mannerModerate = 2 Moderate behavioral changes, affecting interpersonal relationships and interactions in a significant manner
3	Severe = 3 Severe behavioral changes, making interpersonal interactions all unidirectionalSevere = 3 Severe behavioral changes, making interpersonal interactions all unidirectional
99	Not ApplicableNot Applicable

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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