IL6 and Sepsis: Not surprisingly, IL-6 levels in patients with sepsis were significantly higher than in non-septic patients (p < 0.0001): the median IL-6 plasma concentration was 1150 pg/mL (IQR 184-20,659 pg/mL) in patients with sepsis (n = 69) compared to 69 pg/mL (IQR 26–285 pg/mL) in patients without sepsis (n = 91) and slightly higher in deceased patients (Figure 3).