[Comment on article "Risk factors at admission associated with intubation in patients with COVID-19"].

Risk factors associated with intubation in patients with COVID-19, should not be confused with criteria for intubation in patients with respiratory problems. In the treatment of patients with COVID-19, it is important to consider the time from the onset of symptoms and the delay of patients to seek hospital care. This could be another factor influencing patient's evolution. Taking account steroids as a predictor of intubation requires a more in-depth analysis of the steroid used, its dose and the timing in which they are used. There are many factors that can explain the uncertain evolution of patients with COVID-19. Identifying them can help to develop strategies to reduce the delay in mechanical ventilation, and therefore improve the prognosis.