Uniform Data Set version 4
UDSv4 - Template

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

15822

Sum of D1b Diagnoses 18-23 marked as primary (loc_d1b_diagset4)

Valid: 49

Mean: 41.99

var_std: 7.74

Range: -

Format: Numeric

Notes

Calculated : sum([loc_downsif],[loc_huntif],[loc_prionif],[loc_caaif],[loc_lateif],[loc_othcogif])

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