BACKGROUND: Occupational Health Service (OHS) is a service that should support employers and employees with theirwork environment. Previous research indicates the need for deeper knowledge about the effect of workplace interventionswith a focus on planning, organizing and designing the workplace to improve work conditions in hospital settings.

OBJECTIVE: The aim was to evaluate the outcomes, workplace interventions and intervention strategies in hospital settings.

METHODS: A systematic literature review was conducted. CINAHL, MEDLINE, PsycInfo, Scopus, and Web of ScienceCore Collection were searched in September 2021. The Mixed Methods Appraisal Tool was used to evaluate the quality ofthe included studies. Study results are presented through a narrative synthesis. A protocol for this study was registered onthe Open Science Framework.

RESULTS: Twenty-six studies, published between 2010 and 2021, were included. These included randomized controlledtrials (RCTs), non-RCTs, and mixed methods reports with moderate to good quality. The results support the use of workplaceinterventions to improve work conditions, health, and well-being in hospital settings. Combinations of different interventions,tailored to the specific organization, were used. Important intervention strategies commonly used in the start-up, evaluation,and intervention of successful workplace interventions, were identified. Using a pragmatist complexity approach in workplaceinterventions can improve outcomes by providing clear intervention strategies and combinations of tailored interventions,related to context specific problems.

CONCLUSION: OHS support in workplace interventions with clear intervention strategies will contribute to improve workconditions, health and well-being in hospital settings.