Table 1. The baseline characteristics of PDAC patients.

Characteristics	Categories	Number (%)
Gender	Male	51 (66.2)
	Female	26 (33.8)
Age median (range)		62 (20–78)
T stage	T1	4 (5.2)
	T2	16 (20.8)
	T3	57 (74.0)
N stage	N0	35 (45.5)
	N1	42 (54.5)
M stage	M0	73 (94.8)
	M1	4 (5.2)
TMN	IA	4 (5.2)
	IB	10 (13.0)
	IIA	20 (26.0)
	IIB	39 (50.6)
	IV	4 (5.2)
Primary tumor location	Head and Neck	40 (51.9)
	Body and Tail	37 (48.1)
Nuclear grade	I	9 (11.7)
	II	42 (54.5)
	III	26 (33.8)
Nerve invasion	Yes	49 (63.6)
	No	28 (36.4)
Vascular invasion	Yes	10 (13.0)
	No	67 (87.0)