Application value of multiphase contrast-enhanced computed tomography radiomics in preoperative evaluation of peritoneal metastasis in gastric cancer

Table 5 DeLong test comparison of area under the curve between different models

Model comparison	SMOTE-processed training set (n = 178)		Validation set (n = 60)
	AUC difference	P value	AUC difference	P value
Multiphase vs arterial phase	0.093	0.009	0.095	0.025
Multiphase vs venous phase	0.035	0.042	0.042	0.038
Multiphase vs delayed phase	0.068	0.018	0.070	0.032
Venous phase vs arterial phase	0.058	0.028	0.053	0.041
Venous phase vs delayed phase	0.033	0.044	0.028	0.046
Delayed phase vs arterial phase	0.025	0.135	0.025	0.158

SMOTE: Synthetic minority oversampling technique; AUC: Area under the curve.