Fig. 2
From: Organ system network analysis and biological stability in critically ill patients
Clustering of the organ systems. Principal component analysis showing that the six organ systems were divided into two clusters: one cluster of the respiratory, renal, and inflammatory systems and one cluster of the cardiovascular, hepatic, and coagulation systems
PaO2/FIO2, the ratio of partial pressure arterial oxygen to the fraction of inspired oxygen; NGAL, neutrophil gelatinase-associated lipocalin; CRP, C-reactive protein