Abstract
The article presents studies aimed at determining the relative risk of accidents at work in all age groups of employees and the trend of possible changes in risk as a function of time in the years 2008−2018. The studies were conducted on the basis of statistics of accidents at work in Poland in the years 2008−2018. The data were collected from statistical yearbooks published by the Polish Central Statistical Office. The database covered 732,460 accidents at work. A retrospective cohort analysis of the relative risks for each year and the entire population was carried out. Through sensitivity testing, changes in the summary effect resulting from the removal of a given study were determined. The group with the highest average relative risk of accidents at work (2.59) were employees aged 18−19 years. An increase in relative risk was observed among employees aged +60 years. The smallest relative risk (0.33) was determined among employees under 18 years of age, who in Poland are mainly trainees and students.