Table 2.

Multivariate Cox proportional hazards regression analyses of the advanced HCC radiomics signature and clinical features for predicting overall survival in the training set

Radiomics signature and clinical feature	Hazard Ratio*	P-value
ɑ-fetoprotein level	1.67 (1.11-2.53)	0.01#
InverseDifferenceMoment_AllDirection_offset4_SD (art)	0.72 (0.47-1.09)	0.12
Compactness1 (art)	0.65 (0.43-0.97)	0.04#
ClusterShade_AllDirection_offset1 (por)	2.53 (1.58-4.48)	<0.005#
ZonePercentage (por)	1.73 (1.20-2.48)	<0.005#

Note.-HCC: hepatocellular carcinoma, art: late arterial phase, por: portal venous phase;

*Numbers in parentheses are 95% confidence intervals;

#Statistically significant.