Table 4.

The results of DeLong test between every two models

	Clinical model	Radiomics signature	Radiomics nomogram
Clinical model	–	−0.3846	−2.031	Z
		0.7005	0.04226	p
Radiomics signature	−0.3846	–	−2.2972	Z
	0.7005		0.02161	p
Radiomics nomogram	−2.031	−2.2972	–	Z
	0.04226	0.02161		p

Z, Z statistic ; p, p-value.