IL6 and acute respiratory distress syndrome: Despite inter-individual variability, IL-1β (p<0.0001 and p<0.0001, respectively; Figure 3A), IL-1Ra (p<0.0001 and p<0.0001, respectively; Figure 3B) and IL6 (p<0.001 and p<0.001 respectively; Figure 3C) concentrations were significantly increased in BALF from C-ARDS and NC-ARDS patients compared to controls.