Mediating role of psychological capital in occupational stress and depressive symptoms among employees working in an assembly-line of electronic manufacturing service industry / 中国职业医学

ABSTRACT

OBJECTIVE: To analyze the association of depressive symptoms,occupational stress and psychological capital( Psy Cay) in employees working in an assembly-line of electronic manufacturing service industry( EMSI),and discuss the mediating effect of Psy Cap in occupational stress and depressive symptoms. METHODS: A total of 2269 employees who work in an assembly-line from 9 EMSI enterprises in Beijing City,Jiangsu and Guangdong Provinces were selected as study subjects by a cross-sectional survey method. The Patient Health Questionnaire,Effort-Reward Imbalance Scale and Psy Cap Questionnaire were used to investigate their depressive symptoms,occupational stress and Psy Cap. The hierarchical regression analysis was used to explore the effects of occupational stress and Psy Cap on depressive symptoms. The mediating role of Psy Cap was examined using asymptotic and resampling strategies. RESULTS: The detection rate of depressive symptoms was 26. 0%( 589/2 269),and the detection rate of effort-reward imbalance model occupational stress was 26. 6%( 603/2 269). The total score of depression symptoms was positively correlated with the scores of the occupational stress effort and over-commitment dimensions [Spearman correlation coefficient( rS) were 0. 22 and 0. 34,respectively,P < 0. 01),and negatively correlated with the scores of the occupational stress reward dimension and the total score of Psy Cay( rSwere-0. 37 and-0. 39,respectively,P < 0. 05). Psy Cap plays a partial mediating role between the dimensions of effort and reward of occupational stress and depressive symptoms,and the mediating effect percentage was14. 8% and 23. 7% respectively. CONCLUSION: The Psy Cap of employees of EMSI assembly-line plays a partial mediating effect in occupational stress effort,reward and depressive symptoms. Increased levels of Psy Cap will help alleviate depressive symptoms.