Assédio moral no trabalho e seu papel nos transtornos mentais comuns e dor lombar: um estudo com trabalhadores do judiciário federal ; Workplace Bullying and its Role in Common Mental Disorders and Low Back Pain: a Study with Workers from the Federal Judiciary in Brazil

Introduction: The new models of work management have impacted occupational risks and workers health. In the Brazilian public service, this phenomenon is consolidated with state reform, which started in the 1990s. In this context, psychosocial risk at work, such as stress and bullying, increase, and negatively affect mental and physical health. It may lead to an increase in the occurrence of common mental disorders and musculoskeletal problems such as low back pain. Most studies which evaluate workplace bullying as a determinant of health are from high-income countries, being scarce in low- and middle-income countries. Besides, the mechanisms, confounders and mediators of the association between bullying, mental disorders and musculoskeletal complaints still need further clarification. Objectives: The first paper, a systematic review, aimed to analyse epidemiological studies that have addressed risk factors for workplace bullying, seeking to understand its mechanisms and determination; the other two articles evaluated the prevalence of common mental disorders and low back pain in civil servants of the Federal Judiciary in Porto Alegre, analysing the association between bullying and the health outcomes. Methods: The first paper of the thesis is a systematic review of risk factors for workplace bullying, with focus on epidemiological studies. The PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyzes) and MOOSE (Meta-Analyzes of Observational Studies in Epidemiology) guidelines were used to describe the selected articles, and the quality was evaluated by the Downs and Black checklist. The second part of the thesis consists of two papers related to a cross-sectional study, with data collected by a web survey between June and October 2018. The online questionnaire addressed demographic, socioeconomic, behavioural, and occupational factors, focusing on work organization, psychosocial factors at work and workplace bullying, as well as the health outcomes. The revised Negative Acts Questionnaire ...