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

14926

Total UPDRS Score (totalupdrs)

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

Overview

Valid: 54

Mean: 73.27

var_std: 18.40

Range: -

Format: Numeric

Others

Notes

Calculated : if([speech] = '8' OR [facexp] = '8' OR [trestfac] = '8' OR [trestrhd] = '8' OR [trestlhd] = '8' OR [trestrft] = '8' OR [trestlft] = '8' OR [tractrhd] = '8' OR [tractlhd] = '8' OR [rigdneck] = '8' OR [rigduprt] = '8' OR [rigduplf] = '8' OR [rigdlort] = '8' OR [rigdlolf] = '8' OR [tapsrt] = '8' OR [tapslf] = '8' OR [handmovr] = '8' OR [handmovl] = '8' OR [handaltr] = '8' OR [handaltl] = '8' OR [legrt] = '8' OR [leglf] = '8' OR [arising] = '8' OR [posture] = '8' OR [gait] = '8' OR [posstab] = '8' OR [bradykin] = '8', 888, sum([speech], [facexp], [trestfac], [trestrhd], [trestlhd], [trestrft], [trestlft], [tractrhd], [tractlhd], [rigdneck], [rigduprt], [rigduplf], [rigdlort], [rigdlolf], [tapsrt], [tapslf], [handmovr], [handmovl], [handaltr], [handaltl], [legrt], [leglf], [arising], [posture], [gait], [posstab], [bradykin]))

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