Prevalence of selected diseases among pre-hospital emergency services personnel in Germany – results of the EMS Health Study 2023 Objective: The health of pre-hospital emergency medical services (EMS) staff is crucial for the provision of high-quality medical care. However, currently only limited data on the health monitoring of German EMS staff is available. The aim of the study was therefore to analyse the 12-month prevalence of selected diseases and symptoms among German EMS staff. Methods: A nationwide survey study was conducted. Questions from the GEDA2019/2020 study were used to collect information on the health status of EMS staff. Subsequently, 12-month prevalences were calculated with the corresponding 95 % confidence intervals (95 % CI). Results: In the end, 1,171 active German EMS staff (67.9 % male/31.9 % female) with a median age of 32.0 years were included in the analysis. The results indicate that excess weight and obesity are common health problems among EMS staff, with men (68.4 % [95 % CI: 64.8 %; 71.4 %]) being more affected than women (45.0 % [95 % CI: 39.9 %; 50.2 %]). The highest 12-month prevalence was calculated for lower back pain (51.8 % [95 % CI: 48.9 %; 54.7 %]), followed by pain in the cervical spine (41.9 % [95 % CI: 39.1 %; 44.8 %]), allergies (34.1 % [95 % CI: 31.4 %; 36.9 %]), hypertension (19.1 % [95 % CI: 16.9 %; 21.5 %]) and depression (16.2 % [95 % CI: 14.2 %; 18.5 %]). Compared to the German general population, the 12-month prevalence of obesity, asthma, COPD, hypertension, elevated blood lipid levels, arthritis, depression and obesity was higher for certain gender and age groups of emergency workers. Conclusion: The result of this study indicate a poor health state among German pre-hospital EMS staff and the need for preventive measures. Keywords: 12-month prevalence – emergency medical services – health – obesity – epidemiology