FABP4 and Sepsis: We identified a lower A-FABP level upon admission to the ICU as a prognostic marker for hospital survival in critically ill patients (hazard ratio (HR) 3.92, 95% CI 1.15 to 13.40, P = 0.029), especially in the sepsis patient group (HR 4.82, 95% CI 1.10 to 21.10, P = 0.037).