Figure 3From: Serum cystatin C concentration as a marker of acute renal dysfunction in critically ill patientsNonparametric receiver operating characteristic plots of sensitivity and specificity of serum creatinine and cystatin C. Area under the curve (95% confidence interval): creatinine 0.694 (54.1–84.6) and cystatin C 0.927 (86.1–99.4).Back to article page