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

13892

IVP Q4a2./FVP Q5a2. What is the average amount of time spent in contact with the participant during each encounter? (Please include an average of all encounter types) (incnttim)

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

Overview

Valid: 57

Range: -

Format:

Questions and instructions

Question pretext

[inlivwth] = '0'

Categories

Value	Category	Cases
1	Less than 5 minutes (appropriate for texting or email and may be applicable to other modes of contact as well)Less than 5 minutes (appropriate for texting or email and may be applicable to other modes of contact as well)	25	43.9%
2	5-15 minutes	4	7%
3	15-30 minutes	10	17.5%
4	30-60 minutes	10	17.5%
5	Longer than one hour	8	14%

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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