Intratumoral and peritumoral radiomics predict pathological response after neoadjuvant chemotherapy against advanced gastric cancer

Insights into Imaging

Table 3 p value of Delong test for any two models in the training and validation groups

	Intratumoral model	Peritumoral model	Combined model	Clinical model	Intratumoral-clinical model	Peritumoral-clinical model
Training group
Peritumoral model	0.002
Combined model	0.704	0.0001
Clinical model	< 0.0001	0.082	< 0.0001
Intratumoral-clinical model	0.430	0.001	0.794	< 0.0001
Peritumoral-clinical model	0.059	0.010	0.020	0.0001	0.016
Combined-clinical model	0.299	0.0001	0.315	< 0.0001	0.737	0.003
Validation group
Peritumoral model	0.259
Combined model	0.423	0.060
Clinical model	0.245	0.747	0.130
Intratumoral-clinical model	0.384	0.087	0.891	0.044
Peritumoral-clinical model	0.788	0.195	0.432	0.137	0.366
Combined-clinical model	0.167	0.015	0.366	0.022	0.401	0.126