Table 1. Correlation of SMAD7 protein expression with clinicopathologic features.

Clinicopathologic	Cases(N)	SMAD7 expression		p
features		Low	High
Ages
≥60	30	22	8	0.207
<60	110	66	44
Gender
Male	104	59	45	0.116
Female	36	26	10
Grade
1	21	6	15	0.013
2	109	69	40
3	10	6	4
Stage
I	8	4	4	0.59
II	50	30	20
III	82	54	28
T Classification
T1	10	4	6	0.853
T2	61	30	31
T3	69	34	35