Occupational stress and its effects on depressive symptoms, anxiety symptoms, and sleep in workers of ferrous and non-ferrous metal mining industry in Gansu Province

HE Yuhong; ZHANG Haiya; ZHOU Nan; XU Jia; ZHAO Wenli

doi:10.11836/JEOM24341

Volume 42 Issue 4

Apr. 2025

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Journal of Environmental and Occupational Medicine > 2025 > 42(4): 444-450. > DOI: 10.11836/JEOM24341

HE Yuhong, ZHANG Haiya, ZHOU Nan, XU Jia, ZHAO Wenli. Occupational stress and its effects on depressive symptoms, anxiety symptoms, and sleep in workers of ferrous and non-ferrous metal mining industry in Gansu Province[J]. Journal of Environmental and Occupational Medicine, 2025, 42(4): 444-450. DOI: 10.11836/JEOM24341

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Occupational stress and its effects on depressive symptoms, anxiety symptoms, and sleep in workers of ferrous and non-ferrous metal mining industry in Gansu Province

Department of Occupational Health, Gansu Center for Disease Control and Prevention, Lanzhou, Gansu 730000, China

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Corresponding author:
ZHAO Wenli, E-mail: zhaowenli2011@126.com
Received Date: July 14, 2024
Accepted Date: January 08, 2025

Graphical Abstract

Abstract

Abstract

Background
Due to the unique working environment and numerous occupational disease hazards, workers in mining industry are particularly susceptible to psychological problems such as occupational stress.
Objective
To understand the current status of occupational stress, depressive symptoms, anxiety symptoms and sleep quality of workers in ferrous and non-ferrous metal mining industry in Gansu Province, and to explore the effects of occupational stress on depressive symptoms, anxiety symptoms, and sleep.
Methods
From April to December 2022, the workers of 25 large, medium, and small and micro enterprises were selected by stratified cluster random sampling and surveyed in ferrous and non-ferrous metal mining industry in Gansu Province. The Occupational Health Literacy Questionnaire of National Key Population, Core Occupational Stress Scale, Patient Health Questionnaire-q, Generalized Anxiety Disorder, and Self-administer Sleep Questionnaire were used to collect basic information, occupational stress, depressive symptoms, anxiety symptoms, and sleep quality of the workers. Chi-square test was used to compare occupational stress, depressive symptoms, anxiety symptoms and sleep disorders among different categories. Logistic regression model was used to study the effects of occupational stress on depressive symptoms, anxiety symptoms, and sleep quality.
Results
In this study, 2192 workers in mining industry were surveyed, of which 2087 returned valid questionnaires, and the recovery rate of valid questionnaires was 95.2%. Among them, 728 (38.4%) reported occupational stress. There were statistically significant differences in the positive rate of occupational stress among workers by gender, age, marital status, education level, average monthly income, length of service, enterprise size, and night shifts (P<0.001). The positive rates of depressive symptoms, anxiety symptoms, and sleep disorders in the mining industry workers were 85.6%, 49.8%, and 47.3%, respectively. The positive rates of depressive symptoms, anxiety symptoms, and sleep disorders among workers with higher occupational stress were higher than those among workers without occupational stress (P<0.001). The logistic regression analysis showed that occupational stress was a common risk factor for depressive symptoms (OR=3.29, 95%CI: 2.26, 4.79), anxiety symptoms (OR=2.87, 95%CI: 2.33, 3.53), and sleep disorder (OR=1.78, 95%CI: 1.46, 2.16). In addition, length of service and enterprise-scale were also risk factors for depressive symptoms, anxiety symptoms, and sleep disorders. In the 5−<10 and 10−<20 years of service groups, the risks of reporting depressive symptoms were 1.80 (95%CI: 1.18, 2.74) and 1.73 (95%CI: 1.10, 2.71) times higher than that of workers with less than 1 year of service, respectively; the risks of reporting anxiety symptoms were 1.98 (95%CI: 1.42, 2.76) and 2.11 (95%CI: 1.48, 3.01) times higher than that with less than 1 year of service, respectively; the risks of reporting sleep disorders were 1.58 (95%CI: 1.15, 2.16) and 1.78 (95%CI: 1.29, 2.45) times higher than that with less than 1 year of service, respectively. Workers in large enterprises were inclined to report more depressive symptoms, anxiety symptoms, and sleep disturbances than those in micro and small enterprises (OR=3.53, 95%CI: 2.41, 5.16; OR=2.49, 95%CI: 1.98, 3.13; OR=2.10, 95%CI: 1.67, 2.62).
Conclusion
The occupational stress level of mining industry workers in Gansu Province is high, and reporting occupational stress, 5−<10 and 10−<20 working age groups, and large enterprises are important risk factors affecting workers' mental health and sleep. It is necessary to increase the attention and develop intervention programs for mental health of miners in the working age group of 5−20 years old and in large enterprises.
- mining industry,
- occupational stress,
- depressive symptom,
- anxiety symptom,
- sleep disorder

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References (31)

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