Table 2.

ImmunoCyt test characteristics with urothelial carcinoma proven by biopsy as the gold standard^*

	No.	All positives, no.	True positives, no.	Sensitivity, %	Specificity, %	PPV, %	NPV, %
uCyt with biopsy within 90 d	131	109	64	86.5	21.1	58.7	54.5
With history of UC	99	82	47	85.5	20.5	57.3	52.9
No history of UC	29	24	15	88.2	25.0	62.5	60.0

PPV = positive predictive value; NPV = negative predictive value; UC = urothelial carcinoma.

^*Three patients with an unknown history of UC were excluded from this analysis.