Risk factors and outcomes for acute respiratory failure in coronavirus disease 2019: An observational cohort study.

Background: The novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has spread throughout Europe. However, there is a lack of data on the full clinical course of patients infected with SARS-CoV-2 in Europe, especially in the population that developed acute respiratory failure (ARF).

Objectives: To identify risk factors associated with developing ARF during SARS-CoV-2 infection.