Receiver operating characteristics curve analysis for patients with systemic inflammation at PCTlow (N = 19).

At the two other time points, receiver operating characteristics curves were not significantly different from 0.5. Systemic inflammation was defined as new onset of systemic inflammatory response syndrome plus a two-fold increase in PCT concentration compared to the value of the preceding day or exceeding a minimum of >2 ng/ml. ASM: acid sphingomyelinase serum activity; AUC: area under the curve; LR: likelihood ratio; CRP: C-reactive protein; PCT: procalcitonin.Receiver operating characteristics curve analysis for patients with systemic inflammation at PCTlow (N = 19).