Clinical characteristics Total: 58 Histopathological characteristics Total: 58
Male/female 32/26 Adenocarcinoma/mucinous carcinoma 50/8
Elderly/non-elderly 19/39 Well to moderately differentiated /little differentiated 53/5
ECOG 0-1/2 54/4 T2/T3/T4 5/38/15
OPAA present/absent   16/42 N+/N0 42/16
Synchronous and metachronous metastasis 36/22 CSII/CSIII/CSIV 8/14/36
Table 1: Distribution of the clinical and histopathological characteristics of the overall sample of patients with colon carcinoma. Caption: ECOG = Eastern Cooperative Oncology Group. ECOG 0: fully active, able to carry on all pre-disease performance without restriction. ECOG 1: restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature. ECOG 2: ambulatory and capable of all self-care activities but unable to carry out any work activities, up and about more than 50% of waking hours. OPAA: obstructed/ perforated acute abdomen; T: degree of tumor involvement; N: degree of lymph node involvement, where N+: presence of lymph node involvement and N0: absence of lymph node involvement; CS: clinical stage