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PLoS One. 2017 Feb 16;12(2):e0169903. doi: 10.1371/journal.pone.0169903. eCollection 2017.

Work-family conflict and self-rated health among Japanese workers: How household income modifies associations.

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Public Health, Department of Social Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan.
Department of Public Health and Preventive Medicine, Minia University, Minia, Egypt.
Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan.


To examine associations between work-family conflict and self-rated health among Japanese workers and to determine whether the associations differed by household income. Data was derived from the Japan Public Health Center-based Prospective Study for the Next Generation in Saku area in 2011-2012 (7,663 men and 7,070 women). Multivariate odds ratios (ORs) and 95% confidence intervals (CIs) for poor self-rated health by work-family conflict consisting of two dimensions (work-to-family and family-to-work conflicts) were calculated by gender and household income. Multivariate ORs of high work-to-family and family-to-work conflicts for poor self-rated health were 2.46 (95% CI; 2.04-2.97) for men and 3.54 (95% CI; 2.92-4.30) for women, with reference to the low work-to-family and family-to-work conflicts (p-value for gender interaction = 0.02). Subgroup analysis indicated that health effects of work-family conflict were likely to be more evident in the low income group only among women. Work-family conflict was associated with poor self-rated health among middle-aged Japanese men and women; its health impact was relatively stronger among women, and particularly economically disadvantaged women.

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