Table 1. Correlation USP22 protein expression level and clinicopathological variables.

Variables	No.	USP22		P
		negative	positive
Gender				0.088
Male	57	23	34
Female	53	30	23
Age(years)				0.846
<60	80	39	41
≥60	30	14	16
Differentiation				0.002
Well/moderate	44	29	15
Poor/mucinous	66	24	42
Tumor size (cm)				0.039
≤3	47	28	19
>3	63	25	38
Lymphatic Metastasis				0.172
No	51	21	30
Yes	59	32	27
AJCC stage				0.013
I~II	73	29	44
III	37	24	13
UBC				<0.001
- ~ +	46	34	12
+ + ~ + + +	64	19	45
STAT1				<0.001
- ~ +	45	31	14
+ + ~ + + +	65	22	43