Table 1.

Clinicopathological features of the 201 CRC patients

Clinicopathological features	No. of patients	% of 201 patients
Gender
Male	125	62.2
Female	76	37.8
Age (years)
＜60	88	43.8
≥60	113	56.2
Tumor size (cm)a
＜5	108	53.7
≥5	92	45.8
Tumor site
Right colon	52	25.9
Transverse colon	15	7.5
Left colon	58	28.8
Rectum	76	37.8
Differentiationa
Well	20	10.0
Moderate	148	73.6
Poor	28	13.9
Depth of tumor invasion
T1＋T2	30	14.9
T3＋T4	171	85.1
Lymph node metastasis
N0	86	42.8
N1-2	115	57.2
Distant metastasisa
M0	99	49.3
M1	99	49.3
Vascular invasion
Absent	142	70.6
Present	59	29.4
TNM stagea
Ⅰ＋Ⅱ	68	33.8
Ⅲ＋Ⅳ	130	64.7

Notes: ^aThere are some missing data in tumor size, differentiation, distant metastasis and TNM stage of these 201 CRC patients.