Background: Job burnout is associated with job stress but also with mental health symptoms, depression and anxiety.

Aims: This study aims to evaluate the effect of job stress on burnout without the effect of depression and anxiety.

Methods: A cross-sectional study was conducted in 2015 among 673 employees (88% female) from four public service sectors in Pori, Finland. Job burnout was assessed with the Bergen Burnout Indicator (BBI-15). Job stress was assessed by combining psychological risk factors (demand control, effort rewards and mental workload). Respondents who reported symptoms of depression and anxiety were excluded from the analyses.

Results: Of the eligible study subjects (n = 617), 10% reported symptoms of at least mild burnout but only 1% severe burnout. The burnout symptoms varied from 6% to 21% by sector of public service. Job burnout was cumulatively associated with job stress factors. One job stress factor increased the risk of burnout 2-fold (relative risk [RR] 2.13; confidence interval [CI] 0.97-4.68), two factors 6-fold (RR 6.56; 2.92-14.8Or), and three factors even more (RR 23.5; CI 8.67-63.8). Similar trends were observed in the analysis of job burnout components (exhaustion, cynicism and professional inadequacy).

Conclusions: Our results indicate that job burnout is also strongly associated with job stress in employees who do not have depressive or anxiety symptoms. As job burnout may precede clinical depression or reduce productivity and well-being at work, it is essential to perform surveys to monitor burnout symptoms among the workforce, and design interventions to prevent remarkable job strain.