A new risk-stratification system for hepatoblastoma in children under six years old and the significance for prognosis evaluation—a 14-year retrospective study from a single center

Table 4 The multivariate risk analysis of the COX regression model

Risk factors	n	HR	95%IC	P values
AFP < 100 ng/ml or > 1000 ng/ml	262	3.341	1.742–4.475	0.005
PLT > 400 × 10⁹/L	215	2.123	0.917–3.053	0.026
PRETEXT stage IV	52	4.026	2.063–4.442	0.001
Vascular involvement(V/P)	86	2.178	1.584–4.012	0.019
Metastasis	171	2.634	1.689–3.932	0.010
Multifocality	96	2.215	1.487–4.196	0.012

ISSN: 1471-2407