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

14056

Study Description
Data Dictionary

1h. In the past 12 months, how often did the participant have six or more drinks containing alcohol in one day? (alcbinge)

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

Overview

Valid: 56

Range: -

Format:

Questions and instructions

Question pretext

[alcfreqyr]='1' or [alcfreqyr]='2' or [alcfreqyr]='3' or [alcfreqyr]='4'

Categories

Value	Category	Cases
0	Never	11	19.6%
1	Less than once a month	8	14.3%
2	Monthly	12	21.4%
3	Weekly	15	26.8%
4	Daily or almost daily	6	10.7%
9	Unknown	4	7.1%

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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