SARS-CoV-2 pneumonia is a serious emerging disease. More than 6 million deaths have been reported by the World Health Organization since the start of the pandemic. Identifying the factors associated with disease worsening is necessary to improve the use of medical resources to reduce mortality due to COVID-19. The aim of this study was to investigate the epidemiological, clinical, biological and radiological characteristics of SARS-CoV-2 pneumonia in patients hospitalized in a respiratory department, in order to identify factors predictive of an unfavorable short-term course.