Table 3.

Diagnostic performance of variables that are independently associated with AKI

Variable	Age	Thrombocytes	Leukocytes	Creatinine
P value	0.002	0.005	0.005	Reference
Cut-off	>43 years	≤32 × 109/L	>6.1 × 109/L	120 µmol/L
Sensitivity	70 (54–83)	62 (45–77)	62 (45–77)	85 (70–94)
Specificity	63 (59–68)	93 (90–95)	74 (70–78)	92 (89–94)
PPV	15 (10–20)	43 (30–57)	17 (11–24)	48 (36–60)
NPV	96 (93–98)	97 (94–98)	96 (93–98)	99 (97–100)
AUROC	0.69 (0.65–0.73)	0.80 (0.77–0.84)	0.73 (0.69–0.77)	0.90 (0.88–0.93)