Table 8.

Diagnostic efficacy of CP, CS, and CB methods in brush cytology

Final diagnosis	CP		CS		CB
	Malignant	Benign	Malignant	Benign	Malignant	Benign
Malignant	17	15	25	7	13	19
Benign	0	1	0	1	0	1
Sensitivity, %	53.1		78.1		40.6
Specificity, %	100		100		100
Accuracy, %	54.5		78.8		42.4
PPV, %	100		100		100
NPV, %	6.3		12.5		5.0

CP, CellPrepPlus; CS, conventional smears; CB, cell block; PPV, positive predictive values; NPV, negative predictive values.