Table 3.

ROC analysis.

	AUC	95% CI	P value	Cut-off	Sensitivity (%)	Specificity (%)
Cys C (12 h)	0.735	0.648–0.823	0.000	1.315 mg/L	79.3	55.4
Cys C (24 h)	0.928	0.870–0.987	0.000	1.55 mg/L	82.8	97.8
Cys C (Δ12 h)	0.758	0.668–0.847	0.001	0.185 mg/L	79.3	95.3
Cys C (Δ24 h)	0.936	0.879–0.992	0.000	0.26 mg/L	89.7	95.6
Cys C (Δ24 h%)	0.923	0.875–0.972	0.000	17.15%	79.3	87.8
sCr (24 h)	0.733	0.640–0.825	<0.001	73.55 umol/L	89.7	43.5

Cys C – cystatin C; sCr – serum creatinine; Δ12 h – serum level changes between 12 hours and baseline; Δ24 h – serum level changes between 24 hours and baseline.