FABP1 and acute kidney injury: For less severe non-septic patients with APACHE II scores < 14 (n = 43), both NGAL and L-FABP showed good predictive performances for AKI (NGAL, AUC-ROC 0.983, 95% CI 0.864–0.998; L-FABP, AUC-ROC 0.950, 95% CI 0.753–0.992).