Objective To estimate the prevalence of job stress and its influencing factors among the metro staff.
Methods Metro staff (n=357) were selected and surveyed by a job stress core questionnaire based on a job demand-control model. Database was set up with EpiData 3.0 and analyzed with SPSS 16.0.
Results A total of 347 workers were job stress positive (97.20%). The results of ANOVA analysis showed that there were significant differences in job demand scores among workers categorized by gender, educational background, job position, marital status, income, sleep quality, and life satisfaction (P<0.05); there were significant differences in job control scores among workers categorized by gender and sleep quality (P<0.05); and there were significant differences in the ratio of job demand/job control among workers categorized by job position, sleep quality, and life satisfaction. The results of multivariate logistic analysis indicated that the main influencing factors were job position, income, working years, and insomnia (P<0.05). Job position, over 5 working years, and insomnia were the risk factors for high job stress in metro workers: the OR was 3.53 (95% CI: 1.77-7.04) for metro drivers, and the OR was 3.21 (95% CI: 1.30-7.92) for dispatchers, compared with the metro ground service attendants; the OR was 1.93 (95% CI: 1.01-3.71) for 5-9 working years, and the OR was 2.12 (95% CI: 1.07-4.19) for over 10 working years with staff having 0-4 working years as baseline. The high job stress among the insomniac workers was 1.86 times (95% CI: 1.11-3.13) higher than those without insomnia. Income was a protective factor of high job stress; the high job stress among workers with income over 3 000 RMB Yuan was 0.57 times (95% CI: 0.31-1.04) of those below 3 000 RMB Yuan.
Conclusion Metro staff generally have job stress. The main influencing factors are job position, income, working years, and insomnia. It is important to increase social support and welfare to relieve their job stress.
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