Table 1. Association between EGFR protein expression and TCC histological parameters.

Histological parameters		n	EGFR
			Low*	High*
Lymph node metastasis
	Absent	22	6 (27%)	16 (73%)
	Present	3	1 (33%)	2 (67%)
	P		0.64
Vessel invasion
	Absent	8	4 (50%)	4 (50%)
	Present	17	3 (18%)	14 (82%)
	P		0.23

*:TCC patients were divided into 2 groups based on EGFR protein expression score obtained by immunohistochemistry: low- (scores 0, 1 and 2) and high- (scores 3) expression groups.

Statistical analysis was performed by the χ² test.