Table 1.

Diagnostic sensitivities and specificities:

a) calculated on a per case basis
Methods		OCT		Cyst		Cyto		p-values
Tumors		n/N	%	n/N	%	n/N	%	OCT : Cyst	OCT : Cyto	Cyst : Cyto
CIS (pTis)		2/3 66.7		0/3 0		3/3 100		0.400	1.000	0.100
pTa-pT1	LG HG	12/12 100		8/12 66.7		0/10 0		0.093	0.0001	0.002
		6/6 100		6/6 100		1/3 33.3		1.000	0.083	0.226
Superficial (<pT2)		20/21 95		14/21 66.7		4/16 25		0.044	0.0001	0.012
≥pT2		14/15 93.3		13/15 86.6		11/13 84.6		1.000	0.583	1.000
Sensitivity		34/36 94.4		27/36 75		17/29 58.6		0.022	0.005	0.160
Specificity		26/32 81.3		17/32 53.2		24/27 88.9		0.017	0.488	0.003
b) calculated on a per lesion basis
Methods		OCT		Cyst		Cyto		p-values
Tumors		n/N	%	n/N	%	n/N	%	OCT : Cyst	OCT : Cyto	Cyst : Cyto
CIS (pTis)		8/9 88.9		2/9 22.2		8/8 100		0.015	1.000	0.002
pTa-pT1	LG HG	17/17 100		11/17 64.7		0/14 0		0.018	0.0001	0.0001
		9/9 100		8/9 88.9		4/6 66.7		1.000	0.143	0.525
Superficial (<pT2)		34/35 97		21/35 60		12/28 42.9		0.002	0.0001	0.040
≥pT2		17/18 94.4		16/18 88.9		14/16 87.5		1.000	0.591	1.000
Sensitivity		51/53 96.2		37/53 69.8		26/44 59.1		0.0003	0.0001	0.271
Specificity		51/57 89.5		42/57 73.7		45/48 93.8		0.030	0.436	0.007

* Cyst: cystoscopy, Cyto: cytology; N: total number, LG: low grade, Superficial: all pTis and pTa-pT1 tumors. Cytology data for 12 cases were unavailable.