Table 1.

Characteristics of the study subjects

Training setValidation set
PCHVP valuePCHV+CPP
NTotal43424264 (41+23)
Male23252541
Female20171723
Age, yMean66.263.20.086267.762.50.0354
SEM1.561.331.551.42
Range36–8439–7949–9333–88
Stage011
IA12
IB21
IIA32
IIB23
III1313
IV2120
LocationHead2727
Body911
Tail74
Histology/cytologyDuctal adenocarcinoma4140
Mucinous carcinoma11
Acinar cell carcinoma01
Adenosquamous carcinoma10

NOTE: All PC and HV were randomly allocated to the training or validation set. The pancreatic cancer staging was based on the UICC TNM classification. SEM, standard error of the mean. P values were calculated using the Wilcoxon rank-sum test.

Abbreviations: CP, chronic pancreatitis; HV, healthy volunteers; PC, pancreatic cancer.