CHI3L1 and Sepsis: As seen via ROC analysis, the YKL-40, CRP, and ANC values upon admission resulted in significant areas under the curve (AUC) for detecting sepsis: YKL-40 [AUC = 0.771 (95% CI 0.632–0.911), p = 0.003]; CRP [AUC = 0.942 (95% CI 0.879–1.000), p = 0.000]; and ANC [AUC = 0.816 (95% CI 0.690–0.941, p = 0.001].