Comparing the prognostic performance of ASSIST to interleukin-6 and procalcitonin in patients with severe sepsis or septic shock.

CONTEXT: We recently derived and validated a multi-biomarker-based model (ASSIST) to stratify patients with sepsis based on initial mortality risk. OBJECTIVE: The objective of this study was to compare the performance of ASSIST to interleukin-6 (IL6) and procalcitonin (PCT). METHODS: The area-under-the-receiver operating characteristic curve for predicting 28-d mortality using ASSIST was compared with that of IL6 (n = 452) and PCT (n = 235). RESULTS: The area under the curve for ASSIST was greater than that of IL6 and PCT. CONCLUSIONS: ASSIST estimated the probability of mortality more reliably than IL6 and PCT in this cohort of patients with sepsis.