Table 1.

Characteristics of patients.

Characteristics	Number of patients (n = 55) [(n (%)]
Age (mean ± SD) (yr)	68.5 ± 11.4
Sex
Male	27 (49%)
Female	28 (51%)
Classification
ICC	24 (44%)
PCC	31 (56%)
LN metastasis on CT/MR
Yes	32 (58%)
No	23 (42%)
Distant metastasis on CT/MR
Yes	8 (14%)
No	47 (86%)
serum CA19-9 (U/mL)
≥ 324	35 (64%)
< 324	20 (34%)
Neutrophil to lymphocyte ratio (NLR)
≥ 2.9	26 (47%)
< 2.9	29 (53%)
Histopathologic findings
CEA expression
Yes	35 (64%)
No	20 (35%)
p53 expression
Yes	26 (47%)
No	29 (53%)
Treatment
Surgery	14 (26%)
Chemotherapy	41 (74%)
Survival (median, mo)	11.9 (6.0–55.2)