Prediction of the efficacy of first transarterial chemoembolization for advanced hepatocellular carcinoma via a clinical-radiomics model

Table 2 Imaging features of the training and validation cohorts, n (%)/mean ± SD

Characteristics	Training cohort (n = 85)	Validation cohort (n = 37)	P value
Diameter (mm)	95.04 ± 32.988	92.97 ± 35.158	0.752
Number of tumors			0.351
One	37 (43.5)	14 (37.8)
Multiple	48 (56.5)	23 (62.2)
Location			0.516
Right	59 (69.4)	25 (67.6)
Left	23 (27.1)	12 (62.4)
Caudate lobe	3 (3.5)	0 (0)
Envelope			0.409
Absent	31 (36.5)	15 (40.5)
Present	54 (63.5)	22 (59.5)
Tumor necrosis			0.279
Absent	17 (20.0)	5 (13.5)
Present	68 (80.0)	32 (86.5)
Intratumoral hemorrhage			0.598
Absent	76 (89.4)	33 (89.2)
Present	9 (10.6)	4 (10.8)
Tumor rupture			0.074
Absent	78 (91.8)	37 (100.0)
Present	7 (8.2)	0 (0)
Portal vein thrombosis			0.129
Absent	39 (45.9)	11 (29.7)
Present	46 (54.1)	26 (70.3)