Table 1.

The main patient and tumor characteristics, stratified by 3-year survival status.

Variables	N	Survivors	Non-survivors	P-value*
GENDER
Male	82	60	22	0.071
Female	42	24	18
AGE (YEARS)
≤60	46	35	11	0.127
>60	78	49	29
LOCATION
Rectum	71	47	24	0.670
Colon	53	37	16
MAXMUM DIAMETER
≤5	80	50	30	0.098
>5	40	31	9
TNM STAGE
I	18	16	2	0.091
II	26	19	7
III	50	29	21
IV	26	16	10
DEPTH OF TUMOR INVASION (T)
T1-T3	60	47	13	0.007
T4	60	33	27
LYMPH NODE METASTASIS (N)
N0	55	43	12	0.016
N1-N2	66	38	28
DISTANT METASTASIS (M)
M0	97	67	30	0.466
M1	26	16	10
POSTOPERATIVE CHEMOTHERAPY
No	48	32	16	0.839
Yes	76	52	24

^*Univariate analysis of categorical variables was performed using χ².