Figure 2.
Rates of NIV failure and in-ICU mortality (expressed in %) according to clinical criteria for acute respiratory distress syndrome (ARDS) and clinical severity of ARDS using the Berlin definition. Intubation rate was significantly different between the four groups (P = 0.001) but not the mortality rate (P = 0.22). Intubation and mortality rates were higher in patients with moderate or severe ARDS than in patients with mild or without clinical criteria for ARDS.