Table 3. Correlations of β-catenin and clinical characteristics.

Variables	β-catenin expression		P Value
	High	Low
Gender
Male	63	20	0.103
Female	26	16
Age (years)
> 56	42	20	0.397
≤ 56	47	16
Surgical procedure
Partial nephrectomy	14	10	0.121
Radical nephrectomy	75	26
Tumor size, cm
< 5.25	41	22	0.128
> 5.25	48	14
TNM stage
I–II	69	24	0.208
III–IV	20	12
Histological subtype
Clear cell	56	11	0.222
Papillary	9	19
Chromophobe	17	2
Others	7	4
Necrosis
Yes	28	6	0.092
No	61	30
Fuhrman grade
G1–2	45	26	0.030
G3–4	44	10

* P value was estimated with Chi-square test.