Table 1

Patients and tumor characteristics

CharacteristicPatients
n%
Total patients32100
Sex
Male1341
Female1959
Age at operation (years)
Median74
Range51–91
Follow-up (months)
Median33
Range1–41
Tumor type
Rectal cancer619
Colon cancer2681
Localization in colon
Right side1038
Left side1662
Tumor size (cm)
Mean5
Range2–12
<51753
≥51547
Dukes’ stage
A13
B1+ B21341
C1+ C21547
D39
Differentiation
Moderate2372
Poor928
Vaso-invasion
Yes928
No2372
Chemotherapy: 5FU-LV722
Radiotherapy26