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

14154

Study Description
Data Dictionary

36. How frequently do you receive poorer service or treatment from doctors or in hospitals compared to other people? (poormedtrt)

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

Overview

Valid: 55

Range: -

Format:

Questions and instructions

Question pretext

[modea1a] <> '0'

Categories

Value	Category	Cases
1	All of the time	8	14.5%
2	Most of the time	4	7.3%
3	Sometimes	8	14.5%
4	None or almost none of the time	23	41.8%
5	Not applicable	12	21.8%
8	Prefer not to answer	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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