Table 1.

Patients characteristics

Parameter	All patients (n = 50)
Age, median (range)	62 (36 to 77)
Sex (male/female)	34/16
ECOG performance status, n (0/1)	49/1
Disease stage, n (%)
M0/M1	15 (30)/35(70)
N0/N1,2	16 (32)/34 (68)
G1/2/3	7 (15)/41(81)/2 (4)
Number of metastatic lesions (%)
1	15 (30)
2–3	11 (22)
≥ 4	24 (48)
Lymph-node positive primary tumors, n (%)	34 (68)
Duration of metastatic disease < 12 months, n (%)	37 (74)
CEA > 20 ng/mL, n (%)	15 (30)
Synchronous metastases, n (%)	35 (70)

ECOG = Eastern Cooperative Oncology Group; CEA = carcinoembryonic antigen