Table 1.

The Clinicopathological Parameters of NPC Patients

Clinical Factor	Cases	PVT1 Level		P value
		Low	High
	n=29	n=14	n=15
Gender				0.586
Male	16	9	9
Female	13	5	6
Age (years)				0.635
<44	12	8	10
≧44	17	6	5
Clinical stage				0.032
I+II	12	7	4
III+IV	17	7	11
Lymphatic invasion				0.499
No	20	11	13
Yes	9	3	2
Distant metastasis				0.048
No	19	10	8
Yes	10	4	7