Table 1: Characteristic features of study subpopulations.

PCCPHDs

Number
Age (median)64.5 (41–85)*49 (23–72)*51 (24–89)*
Gender (male : female)13 : 115 : 77 : 9
TNM stage
 I0
 II6
 III1
 IV17
Tumour size (cm)3.2 (1.9–6.1)*
Preoperative CA19-9 (0–37 U/mL)399 (77–1230)*54
Preoperative CEA (<2.5 ng/mL)5 (5–13)*
Tumour site
 Head of pancreas18
  Body of pancreas2
  Tail of pancreas4
Histological grade
 Well/moderate6
 Poor/undifferentiated18

PC: pancreatic cancer; CP: chronic pancreatitis; HDs: healthy donors; CA19-9: cancer antigen 19-9; CEA: carcinoembryonic antigen. Data shown represent median (range).