Table 1.

Baseline characteristics of PDA patients who underwent pancreatic resection

Factors
Sex, male (%)	23 (63.9)
Age (years)	68.2 (51–89)
CEA (ng/ml)	5.5 (0.5–45.7)
CA19‐9 (U/ml)	477 (0.6–5449)
Tumor size (cm)	3.1 (1.5–6.5)
pT4 (%)	11 (30.5)
pN1 (%)	29 (80.6)
UICC staging ≥III (%)	12 (33.3)
Histologic grade Grade ≥2 (%)	11 (30.5)
Lymphatic invasion (%)	21 (58.3)
Vascular invasion (%)	8 (22.2)
Perineural invasion (%)	5 (13.9)

HLA, human leukocyte antingen; CEA, carcinoembryonic antigen; CA19‐9, carbohydrate antigen 19‐9; UICC, Union for International Cancer Control.