Fig. 1From: Evaluation of clinically available renal biomarkers in critically ill adults: a prospective multicenter observational studyAdmission concentrations of the three biomarkers, stratified by AKI severity. a sCysC. b uNAG. c uACR. Concentrations of the three biomarkers are shown in each AKI severity category (non-AKI [n = 758], mild AKI [stage 1; n = 224], severe AKI [stage 2 and stage 3; n = 102]). * P < 0.05. AKI Acute kidney injury, Cre Creatinine, sCysC Serum cystatin C, uNAG Urinary N-acetyl-β-d-glucosaminidase, uACR Urinary albumin/creatinine ratioBack to article page