Table 1.

Clinical Characteristics of Pancreatic Cancer Patients (n = 40).

Characteristic	n	%
Sex
Male	30	75
Female	10	25
Age (yr)
< 50	13	33
> 50	27	67
Tumor size (cm)
≤ 4	16	40
> 4	24	60
TNM stage
I-II	21	53
III-IV	29	47
CA19-9 (kU/L)
≤ 37	18	45
> 37	22	55
Tumor location
Head	16	40
Body/tail	24	60
Vascular invasion
Absent	18	45
Present	22	55
Perineural invasion
Absent	18	45
Present	22	55

Abbreviations: CA19-9, Cancer antigen 19-9; TNM, Tumor-Node-Metastasis.