Table III.

Association between PKM2 expression and clinicopathological Characteristics.

	PKM2
Characteristics	Positive (n=16)	Negative (n=20)	P-value
Age (years)			1.00
≥70	9	11
<70	7	9
Gender			0.32
Male	11	10
Female	5	10
Tumor size (mm)			1.00
≥25	8	10
<25	8	10
Location			0.32
Head	11	10
Body	4	6
Tail	1	4
Differentiation			0.61
High/moderate	15	17
Poor/mucinous	1	3
pT stage			0.26
pT1, T2	2	6
pT3	14	14
Nodal metastasis			0.31
Positive	9	7
Negative	7	13
Portal vein involvement			0.52
Positive	4	7
Negative	12	13
Arterial involvement			1.00
Positive	1	2
Negative	15	18
Microinvolvement
Ly			0.46
Positive	13	13
Negative	3	7
V			1.00
Positive	7	8
Negative	9	12
Ne			0.10
Positive	15	14
Negative	1	6

PKM2, pyruvate kinase isoenzyme type M2; Ly, lymphatic involvement; V, venous involvement; Ne, perineural involvement.