Table I.

Characteristics of the 130 patients with colorectal cancer.

Characteristic	No.
No. of patients	113
Gender
Male	64
Female	49
Age (years) (mean ± SD)	69.3±11.0
Location
Colon	76
Rectum	37
Histological type
Differentiated	106
Undifferentiated	7
Depth of invasion
Tis (0)	1
T1	8
T2	18
T3	53
T4a	22
T4b	11
Metastasis
Lymph node (−/+)	52/61
Distant (−/+)	90/23
TNM stage
0	1
I	18
II	32
III	39
IV	23

TNM, Tumor-Node-Metastasis. SD, standard deviation.