Inequality in workplace support for various types of precarious workers compared with permanent workers in Japan: A cross‐sectional study

OBJECTIVES: The purpose of this study was to examine, by sex, whether precarious workers in Japan receive less support in the workplace than permanent workers. METHODS: We conducted a cross‐sectional study using an online questionnaire in 2022. We stratified participants by sex and performed modified Poisson regression analysis. The outcomes were support from supervisors, co‐workers, occupational health professionals, and no one. Adjusted prevalence ratios (aPR) were calculated for contract workers, part‐time workers, and dispatched workers, using permanent workers as reference. RESULTS: This study had 21 047 participants. For men, 87.9% were permanent workers; for women, 50.7% were permanent workers and 37.3% were part‐time workers. For workplace support, 47.5% of men and 45.2% of women selected superiors; 41.8% of men and 50.5% of women selected colleagues; 16.8% of men and 6.2% of women selected occupational health professionals. Female contract workers were less likely to receive support from their supervisors (aPR 0.88) or co‐workers (aPR 0.89). Male part‐time workers were less likely to be supported by their co‐workers (aPR 0.86). Dispatched workers were less likely to be supported by their supervisors (men aPR 0.71, women aPR 0.84) and co‐workers (men aPR 0.73, women aPR 0.77). Part‐time and dispatched workers were less likely to receive support from occupational health professionals. CONCLUSIONS: Precarious workers could get less workplace support than permanent workers. This may contribute to occupational health problems with precarious workers.