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

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13523

IVP Q7c./FVP Q7b. If the participant has stopped having menstrual periods: Indicate the reason. (Select all that apply) (loc_nomens)

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

Overview

Valid: 50

Range: -

Format:

Questions and instructions

Question pretext

[nomensage]<>'' and [nomensage]<>'888'

Categories

Value	Category	Cases
nomensnat	IVP 7c1./FVP 7b1. Natural menopause	7	14%
nomenshyst	IVP 7c2./FVP 7b2. Hysterectomy (surgical removal of uterus)	5	10%
nomenssurg	IVP 7c3./FVP 7b3. Surgical removal of both ovaries	7	14%
nomenschem	IVP 7c4./FVP 7b4. Chemotherapy for cancer or another condition	2	4%
nomensrad	IVP 7c5./FVP 7b5. Radiation treatment or other damage/injury to reproductive organs	7	14%
nomenshorm	IVP 7c6./FVP 7b6. Hormonal supplements (e.g. the Pill	7	14%
nomensestr	IVP 7c7./FVP 7b7. Anti-estrogen medication such as Tamoxifen	8	16%
nomensunk	IVP 7c8./FVP 7b8. Unsure	6	12%
nomensoth	7c9./FVP 7b9. Other {nomensothx}	1	2%

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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