Table 1: Baseline clinicopathological characteristics of patients with colorectal cancer.

Characteristics Total
Patient number%

Patient number251
Age (years), median (range) 63 (30–83)
6511545.8
6513654.2
Gender
 Male13654.2
 Female11545.8
Histology
 Tubular adenocarcinoma22589.6
 Others*2610.4
T stage
 120.8
 24919.5
 315461.4
 44618.3
N stage
 010742.6
 18031.9
 26425.5
Stage
 I3714.7
 II6023.9
 III9738.6
 IV5722.7
Histological grade
 Well/moderately21184.1
 Poorly4015.9
Lymphovascular invasion
 Negative9236.7
 Positive15963.3
Site of primary tumor
 Right colon6124.3
 Left colon8433.5
 Rectum10642.3
Curative resection (R0 resection)
 Yes19778.5
 No5421.5

Mucinous carcinoma ( ); signet-ring-cell carcinoma ( ).