Table 6.

DeLong test of ROC curve of models in the testing dataset

Pairwise comparison of ROC curves	Difference between areas	Z	p
Radiomics and protein models	0.125	0.794	0.427
Radiomics and combined models	0.045	1.265	0.206
Protein and combined models	0.170	1.192	0.233

ROC receiver operating characteristics