Table 2.

Multivariate analysis of variables predictive for stage B HCC patient survival

Survival	p value	Risk ratio	95% confidence interval
Albumin (g/dl), <4 vs ≥4	0.0024	1.837	1.241	2.728
Anatomical vs nonanatomical	0.0132	0.509	0.304	0.866
AP-factor, AP2 vs AP3	0.0023	0.416	0.234	0.732
Tumor number, 1 vs 4over	0.0001	0.380	0.229	0.615
2,3 vs ≥4	0.0011	0.414	0.248	0.699
Microscopic portal vein invasion, vp0 vs vp2	0.0001	0.302	0.174	0.545
vp1 vs vp2	0.0133	0.435	0.231	0.837

PIVKA-II, protein induced by vitamin K absence or antagonism factor II; AP-factor, a product of the serum levels of AFP and PIVKA-II

vp0: no tumor thrombus in the portal vein

vp1: tumor thrombus distal to the second branches of the portal vein

vp2: tumor thrombus in the second branches of the portal vein