Prevalence and correlation of multiple chemical sensitivity and electromagnetic hypersensitivity with age, sex, and depression in the Japanese population: a retrospective study

Authors: Lu X, Hojo S, Mizukoshi A, Katoh T

Year: 2023 Jun 21

Category: Public Health

Journal: BMC Public Health

Institution: BMC Public Health

DOI: 10.1186/s12889-023-16152-2

URL: https://bmcpublichealth.biomedcentral.com/articles/10.1186/s12889-023-16152-2

Abstract

Overview

In Japan, the characteristics of multiple chemical sensitivity (MCS) and electromagnetic hypersensitivity (EHS) are not clearly defined. This study explores their prevalence and how they correlate with age, sex, and depression among the Japanese population.

Methodology

  • An anonymous self-report questionnaire was used, involving 2,007 participants.
  • Statistical methods included the U-test, chi-squared test, correlation analyses, and covariance structure analysis to develop a structural equation model.

Findings

Older individuals and women are more susceptible to MCS and EHS. Depression strongly correlates with both conditions. Despite similar correlative patterns, MCS and EHS present distinct characteristics.

Key Statistics

  • Prevalence of MCS: 5.9% overall, 4.0% in men, 6.7% in women.
  • Prevalence of EHS: 5.3% overall, 3.4% in men, 6.1% in women.

Conclusion

Both MCS and EHS are prevalent and linked disorders, yet they manifest distinctively and warrant separate consideration in medical and social contexts. A prospective cohort study is recommended to further understand these relationships.

multiple chemical sensitivity electromagnetic hypersensitivity prevalence correlation Japan
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