Reproducibility of Age at Menarche Gathered From Mail Questionnaires: A Report From the Life Span Study
This is the first study to evaluate menarcheal-age reproducibility between self- and proxy-reports using appropriate measures. Mail questionnaires at 9-year interval showed moderate reproducibility across all ages, including elderly self-respondents. Reproducibility varied by the respondent-target relationship, with spouse proxies showing highest and parent proxies showing lowest reproducibility among proxy reports. Additional data are required to establish appropriate methods for handling specific proxy responses.
Authors
- Alina V. Brenner (ORCID: https://orcid.org/0000-0002-8556-3907)
- Munechika Misumi (ORCID: https://orcid.org/0000-0003-2698-4880)
- Michiko Yamada (ORCID: https://orcid.org/0000-0003-4833-2672)
- Mai Utada (ORCID: https://orcid.org/0000-0002-9178-3252)
- Ritsu Sakata (ORCID: https://orcid.org/0000-0003-0868-5502)
- Yuko Kadowaki (ORCID: https://orcid.org/0000-0002-5056-570X)
- Hiromi Sugiyama (ORCID: https://orcid.org/0000-0003-2536-0865)
Institutions
- Radiation Effects Research Foundation (JP)
Publication Details
- Journal
- Journal of Epidemiology
- Published
- 2025-05-16
- DOI
- https://doi.org/10.2188/jea.je20250027
- Primary Topic
- Ovarian function and disorders
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- U.S. Department of Energy
- Ministry of Health, Labour and Welfare