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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
12613

Sum of D1b Diagnoses 12-23 marked as primary (loc_d1b_diagall)

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

Overview

Valid: 52
Mean: 43.16
var_std: 21.99
Range: -
Format: Numeric

Others

Notes
Calculated : sum([loc_alzdisif], [loc_lbdif], [loc_pspif], [loc_cortif], [loc_ftldmoif], [loc_ftldnoif], [loc_cvdif], [loc_msaif], [loc_cteif], [loc_downsif], [loc_huntif], [loc_prionif], [loc_caaif], [loc_lateif], [loc_othcogif])
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