Predicting depressive symptoms and psychological distress by circulating inflammatory mediators: A 16-month prospective study in Japanese white-collar employees.

Objective: Although increasing evidence suggests that depression/distress involves inflammatory processes, its potential sex differences and the temporal directions for this association remain elusive.

Methods: We examined the temporal association between serum inflammatory mediators and depression/distress as measured by the Center for Epidemiologic Studies Depression Scale (CES-D) and the Kessler Psychological Distress Scale (K6), in non-depressed working men and women (n = 61 and 43, respectively) by a 16-month prospective design.

Results: Fully-adjusted partial correlation analyses revealed that in men, a lower IFN-γ predicted subsequent increases in CES-D and K6 scores, while a higher TNF-α predicted increased K6 scores.

Safety Climate in the Utility Industry: Perceptual Discrepancies Across Organizational Hierarchy.

Objectives: This study aims to extend safety climate research by considering perceptions across the following three hierarchical levels within a workplace: (1) senior leaders/executives, (2) field leaders/supervisors, and (3) front-line employees.

Methods: We conducted a quantitative survey study at a US utility company where we collected data related to safety climate perceptions and employee-reported safety behaviors across the different levels of organizational hierarchy.

Results: The findings revealed the highest safety climate scores among senior leaders/executives, followed by field leaders/supervisors, and then employees, suggesting potential discrepancies between espoused and enacted safety values in the workplace.

Giving social support at work may reduce inflammation on employees themselves: a participatory workplace intervention study among Japanese hospital nurses.

Previously, we reported that the participatory workplace intervention was effective in reducing stress-related inflammatory markers among 31 Japanese female nurses. During the analysis, we recognized that our intervention might have increased prosocial behaviors like giving social support to others in some participants. Based on this assumption, we ran a secondary analysis, which examined the effect of giving social support on inflammatory markers, autonomic nervous activity (ANA), and perceived job stress (PJS) before and after the intervention.

Effects of participatory workplace improvement program on stress-related biomarkers and self-reported stress among university hospital nurses: a preliminary study.

Although participatory workplace improvement programs are known to provide favorable effects on high stress occupations like nursing, no studies have confirmed its effect using biomarkers. The aim of this study was to determine whether a participatory workplace improvement program would decrease stress-related symptoms as evaluated by biomarkers and self-reported stress among hospital nurses. Three actions to alleviate job stress, which were determined through focus group interviews and voting, were undertaken for two months.