35,865 of the patients were treated within the study period Covid-19 diagnosed. This cohort compared the working group with the same number of people who had experienced another acute upper respiratory tract infection during the same period, with a view to a newly diagnosed one Typ-2-Diabetes. The groups were similar in a number of factors that might affect the results, such as gender, Alter and comorbidities. More details on Body-Mass-Index (BMI) were missing, which limits the validity of the study. Using regression models, the working group calculated the relative incidence rates (IRR).
