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. 2015 Oct 12;2015:785461. doi: 10.1155/2015/785461

Table 2.

Comparison of the immunohistochemical markers with pathologic characteristics (n = 174).

Variable	Categorization	CD73 expression
Variable	Categorization	Score 0 or 1+	Score 2+	p
Tumor stage (WHO 1973)^a	pTa	57	33	0.006
	pT1	57	11
	pT2	12	1
	pT3	2	0
	pT4	0	1
Histologic grade (WHO 1973)^a	G1	31	13	0.100
	G2	60	27
	G3	37	6
Histologic grade (WHO 2004)^b	Low grade	67	34	0.014
Histologic grade (WHO 2004)^b	High grade	61	12	0.014
Adjacent carcinoma in situ^b	No	112	46	0.007
Adjacent carcinoma in situ^b	Yes	16	0	0.007
Multiplicity^b	Solitary	87	37	0.130
Multiplicity^b	Multifocal	41	9	0.130
Growth pattern^b	Papillary	115	44	0.359
Growth pattern^b	Solid	13	2	0.359

Immunohistochemistry
Ki-67 labelling index	≤10%	72	36	0.008
Ki-67 labelling index	>10%	56	10	0.008

^aChi-square Pearson (2-sided); bold face representing p values <0.05.

^bFisher's exact test (2-sided); bold face representing p values <0.05.