Table 1.

Expression of EphA1 protein in ccRCC and the association to clinicopathologic parameters

		No.	EphA1 protein			P value
			0, 1+	2+	3+
Sex
	Male	102	18	54	30	0.016
	Female	42	9	12	21
Age (years)
	<50	39	3	9	27	<0.001
	50-70	87	18	45	24
	>70	18	3	12	3
Tumor diameter (cm)
	<7	6	3	0	3	0.316
	7-10	42	9	15	18
	>10	96	15	51	30
Nuclear grade
	I	60	6	12	42	<0.001
	II	69	12	49	8
	III+IV	15	9	5	1