Fig. 3From: Serum cystatin is a useful marker for the diagnosis of acute kidney injury in critically ill children: prospective cohort studyAt 12 h, ROC analysis of serum cystatin C revealed a sensitivity of 94 % and a specificity of 60 % with cut-off value of 0.645 mg/l, while ROC analysis of serum creatinine showed a sensitivity of 69.2 % and a specificity of 60 % with cut-off value of 30 umol/l. This difference was significant (p = 0.03)Back to article page