IL6 and Sepsis: The levels of sIL-2R in the sepsis group were positively correlated with WBC, CRP, SAA, IL-6, and APACHE II (r = 0.387, p = 0.001; r = 0.248, p = 0.038; r = 0.402, p = 0.001; r = 0.532, p < 0.001; and r = 0.244, p = 0.042, respectively).