Table 1.

Demographic and clinical characteristic of patients with colorectal cancer

Number of patients	179
Males/females	101/78
Age at baseline, years (mean ± S.D.)	65.6 ± 10.1
TNM-T stage, 0 /1/2/3/4/not available	1/4/35/104/19/16
TNM-N stage, 0/1/2/not available	71/68/19/21
TNM-M stage, 0/1/not available	135/33/11
Grade 1/2/3/not available	17/86/36/40
Tumor resection yes/no	16/163
Localization of the primary tumor
Colon	107
Sigmoid	11
Rectum	49
Colon + rectum	3
Sigmoid + rectum	1
Colorectal + other tumor	8