Perceived Organizational Support Associated with Depressive Symptoms Among Petroleum Workers in China: A Cross-Sectional Study

Objective The objective of this study was to explore the association between perceived organizational support (POS) and depressive symptoms, and to further explore whether self-efficacy can act as a moderator between POS and depressive symptoms among Chinese petroleum workers. Methods There was a cross-sectional study conducted at a petrochemical enterprise in Liaoning Province, China, from July to August 2018. A series of questionnaires were accomplished by 1836 petroleum workers, including the Center for Epidemiologic Studies Depression Scale (CES-D), the Survey of Perceived Organizational Support (SPOS), and the General Self-Efficacy Scale (GSES). Hierarchical regression analysis was used to examine the relationship of SPOS score, GSES score, and SPOS score×GSES score interaction with CES-D score. A simple slope analysis will be carried out if the interaction has statistical significance. Results Hierarchical regression analysis showed that SPOS score (β=-0.538, P