Clinical and laboratory data will be collected from medical records from the period of the COVID-19 pandemic (February 2020 to June 2021)
This observational and retrospective study will follow the recommendations of the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE). The aim is to verify and analyze the clinical and laboratory variables with prediction capability for indication of invasive ventilatory support in patients with COVID-19. The present study will be carried out in specific care units for patients with suspected or confirmed COVID-19. Individuals with suspected or clinical diagnosis of COVID-19, with a minimum hospital stay of 24 hours and submitted to oxygen therapy or non-invasive ventilation will be selected. Clinical and laboratory variables will be collected from the moment of admission and every 12 hours until the third day of hospitalization. The primary outcome will be rate of endotracheal intubation, while secondary outocomes will be lenght of stay in intensive care unit, and hospital, as well as mortality rate.