Diagnostic value of the combination of DAPK methylation in urinary sediment and B ultrasound for recurrent urinary bladder cancer

Table 3 Evaluation on diagnosing recurrent UBC by B ultrasound in the bladder, DAPK methylation in urinary sediment, and observation in exfoliated cells in urine

	AUC	Sensitivity (%)	Specificity (%)	Confidence interval	Youden index	Positive predict value (%)	Negative predict value (%)
B ultrasound in the bladder	0.854	71.43	99.04	0.790–0.918	0.708	90.91	97.65
DAPK methylation in urinary sediment	0.84	75.71	92.22	0.780–0.900	0.679	44.92	97.84
Exfoliated cells in urine	0.693	38.57	100	0.614–0.772	0.386	100	95.11
Combination of DAPK methylation and B ultrasound in bladder	0.922	92.86	91.63	0.886–0.959	0.845	48.15	99.35

Youden index = sensitivity + specificity − 1; positive predict value = cases of true positive/(cases of true positive + cases of false positive) × 100%; negative predict value = cases of true negative/(cases of true negative + cases of false negative) × 100%; UBC, urinary bladder cancer, AUC, area under curve

ISSN: 1477-7819