Influence of personality traits on mental health and mediating role of work-family support among front-line power grid workers

Abstract

BackgroundFront-line power grid workers are required to face a variety of occupational hazards (such as aerial work), which make them susceptible to psychological problems and further reduce their performance efficiency and safety level. ObjectiveTo investigate the mental health status of front-line power grid workers and explore the influence of personality traits on mental health and the potential mediating role of work-family support between them. MethodsThis study was designed as a cross-sectional study. From January to June 2019, a cluster random sampling method was used to select two of the 20 power supply stations owned by a Guangdong power company. A total of 485 front-line power grid workers were included in the study. Sociodemographic characteristics were investigated, and NEO Five-Factor Inventory, Work-Family Support Scale, and Symptom Checklist 90 (SCL-90) were used in the survey. Spearman correlation analysis was conducted to analyze the correlations between measured variables. Structural equation modeling was used to analyze the relationships of personality traits, work-family support, and mental health, and Bootstrap analysis was used to test the mediating effect of work-family support on the relationship of personality traits and mental health. ResultsThe M (P25, P75) of total SCL-90 score was 134.00 (110.00, 167.00）, and 139 (28.66%) front-line power grid workers showed positive mental health symptoms. The correlation analysis indicated that among the front-line power grid workers, neuroticism score was negatively correlated with work-family support total score (rs=−0.356, P0.05), openness score was negatively correlated with the scores of all the other sub-dimensions of SCL-90 (rs=−0.091-−0.147, P0.05). The direct effect of agreeableness on work-family support was not statistically significant (P>0.05), while the direct effect on mental health symptoms was −0.180 (P<0.001). ConclusionThe front-line power grid workers show a high score of SCL-90. Workers with higher neuroticism are more vulnerable to mental health symptoms. Work-family support fully mediates the effects of extraversion and openness on mental health symptoms, and partially mediates the effects of neuroticism on mental health symptoms, while does not mediate the effects of agreeableness on mental health symptoms. Sufficient work-family support may improve mental health status.

Keywords

• front-line power grid worker
• personality trait
• work-family support
• mental health
• mediating effect