Correlation analysis between plasma KL‐6 concentration (early sample) and illness severity scores and respiratory/ventilatory parameters (recorded at time of early sample collection)
| Clinical parameter | Correlation with plasma KL‐6 units·mL−1 |
| SOFA score | p=0.35, r=0.18 |
| Oxygenation index cmH2O·mmHg−1 | p<0.01, r=0.57 |
| Pa,O2:Fi,O2 ratio kPa | p<0.05, r=−0.39 |
| Pa,CO2 kPa | p=0.83, r=0.04 |
| Tidal volume mL·kg pred body weight−1 | p=0.06, r=0.37 |
| Peak airway pressure cmH2O | p<0.01, r=0.54 |
| Mean airway pressure cmH2O | p<0.05, r=0.51 |
| PEEP cmH2O | p=0.14, r=0.30 |
SOFA: Sequential Organ Failure Assessment
Pa,O2: arterial oxygen tension
Fi,O2: inspiratory oxygen fraction
Pa,CO2: arterial carbon dioxide tension
PEEP: positive end-expiratory pressure