Use of statistical analysis and logistic regression to study the length of stay in an Emergency Medicine Department in CoViD-19 era

Since the first case recorded in China in 2019, CoViD-19 has overwhelmed the health systems of all countries. The highly complex request for assistance combined with the fear of contagion have changed the normal activity of hospitals. Conversely, as the pandemic spreads, fewer people are going to the Emergency Department (ED) for non-CoViD diseases. In this study, logistic regression and statistical analysis were used to investigate how the pandemic changed the activity of the Emergency Medicine Department of "San Giovanni di Dio and Ruggi d'Aragona" University Hospital of Salerno (Italy). Patients admitted in 2020 have a higher Length of Stay (LOS) and the mode of discharge is mostly "at home". While the discharge modality 'transferred to another regime in the same hospital' had significantly decreased in order to counter the internal contagion.