IL6 and Sepsis: In the four studies analyzing a combination of IL-6 and CRP at sepsis suspicion [3,10,16,25], cut-off values ranged from 21.7 to 60 pg/mL and 4.05 to 14 mg/L, respectively, sensitivities ranged between 78.12 and 100% and specificities between 41 and 96%.