Of note, RBP4 serum concentrations remained significantly (P < 0.001, Mann-Whitney U test) elevated in controls (n = 42, median 28.1; range, 18.8-255.6 mg/L) compared to ICU patients without cirrhosis (n = 112, median 16.5, range 0.3-147.6 mg/L). Here, RBP4 is linked to Cirrhosis.