IL6 and acute respiratory distress syndrome: Patients with moderate to severe ARDS showed significantly higher SOFA-scores (12 vs 9 points), lower hemoglobin counts (5.7 vs 6.6 mg/dl), higher fibrinogen values (6.7 vs 4.1 g/l), higher CRP (186 vs 55 mg/l), PCT (1.35 vs 0.45 ng/ml) and IL-6 (186 vs 27 pg/ml) levels, respectively.