Home / Central Data Catalog / USDV4 / variable [sib8meval]
central

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
13591

2h5. Sibling 8 -- Method of evaluation (sib8meval)

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

Overview

Valid: 55
Range: -
Format:

Questions and instructions

Question pretext
[sibs]>7 and [sibs]<>"" and [sibs]<77
Categories
Value Category Cases
1 Participant /family report 8
14.5%
2 Medical records 3
5.5%
3 Exam (co-enrolled family members) 18
32.7%
4 Autopsy (if autopsy report available) 6
10.9%
6 Provided at previous visit 20
36.4%
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.
Back to Catalog