Prognosis of hepatocellular carcinoma accompanied by microscopic portal vein invasion

Table 2 Univariate analysis of clinicopathological prognostic factors for disease-free survival rate

Factors	Survival rates (%)			P value
	1 yr	3 yr	5 yr
Age (yr)
< 67 (n = 27)	54.7	31.9	31.9	0.7438
≥ 67 (n = 28)	72.5	21.3
Gender
Male (n = 41)	68.7	27.3	22.7	0.2716
Female (n = 14)	48.6	19.4	19.4
Platelets (104/mm3)
< 1.5 (n = 27)	52.8	7.9	7.9	0.1703
≥ 1.5 (n = 28)	74.2	33.7	33.7
Albumin (g/dL)
< 3.9 (n = 27)	61.5	22.6	16.9	0.8555
≥ 3.9 (n = 28)	65.8	29.4	29.4
Tumor size (cm)
< 4.3 (n = 27)	62.9	35.0	35.0	0.4474
≥ 4.3 (n = 28)	64.8	17.0	11.3
AFP (ng/mL)
0-27 (n = 28)	59.1	39.4	39.4	0.1692
> 27 (n = 27)	68.0	14.6	9.7
DCP (mAU/mL)
< 300 (n = 18)	72.5	43.5	43.5	0.2995
≥ 300 (n = 18)	63.0	21.0	14.0
Operative procedure
Anatomical resection (n = 32)	82.3	33.0	33.0	0.0074
Non-anatomical resection (n = 23)	40.9	17.0	11.4
Tumor grade of differentiation
Moderate (n = 38)	69.3	36.7	31.4	0.0661
Poor (n = 17)	52.9	7.4	7.4
IM (-) (n = 31)	67.1	28.2	23.5	0.4761
IM (+) (n = 24)	59.8	22.1	22.1
PVI-S (n = 44)	74.6	27.4	23.5	0.0072
PVI-M (n = 11)	20.0	20.0