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Updated: Jun 9, 2026

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Published on: March 25, 2021
Association Between Infertility and Sickness Presenteeism Among Japanese Workers: A Cross-Sectional Study
Megumi Kawashima1,2, Tomohisa Nagata1, Kiminori Odagami1
1Department of Occupational Health Practice and Management, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan, 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu-shi, Fukuoka, 807-8555, Japan.
Objective:
We examined the association between infertility status and sickness presenteeism among Japanese workers.
Methods:
We conducted a cross-sectional analysis using data from the W2S-Ohpm Study. Participants were 16,685 workers aged 20-49 years. Infertility status was categorized as no infertility, treated infertility, or untreated infertility. Sickness presenteeism was measured by the number of days worked despite poor health. Negative binomial regression estimated adjusted incidence rate ratios (IRRs).
Results:
Among men, treated and untreated infertility were associated with higher sickness presenteeism (treated: IRR=1.96; 95% CI: 1.24-3.11; untreated: IRR=2.12; 95% CI: 1.49-3.02). Among women, untreated infertility was significantly associated with increased presenteeism (IRR=1.47; 95% CI: 1.12-1.94).
Conclusions:
Infertility status was associated with sickness presenteeism among Japanese workers.
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