IL6 and Sepsis: In this analysis, a cut-off value of 42 pg/ml for IL6 is found, resulting in a sensitivity of 90%, a specificity of 85%, and a PPV of 94%, meaning that in 94% of the cases patients with an IL6-value at the first day of fever above the cut-off-level 42 pg/ml will develop sepsis or a longer episode of fever.