Fig. 2

Significant correlations between PICU Day-1 plasma biomarkers and clinical variables/illness severity scores. Biomarker concentrations on the y-axis correlated with clinical variables and illness severity scores. Abn CXR reflects any infiltrate identified in either lung field on chest x-ray. Resp Source refers to any infectious pathogen identified in the nasopharynx or by respiratory culture. Invasive MV refers to any patient requiring mechanical ventilation via either an endotracheal tube or tracheostomy. LOS refers to the number of days in either the PICU or hospital. * p < 0.05