Correlation between radiomic features of Crohn's disease and secondary loss of response to infliximab

Table 3 Predictive performance of different models

Model		Clinical	Radiomics	Combined
Training cohort	AUC	0.720 (95%CI: 0.635-0.804)	0.818 (95%CI: 0.752-0.884)	0.871 (95%CI: 0.824-0.929)
	SEN	0.633	0.817	0.762
	SPE	0.745	0.727	0.872
	ACC	0.667	0.776	0.795
Validation cohort	AUC	0.700 (95%CI: 0.556-0.844)	0.808 (95%CI: 0.686-0.930)	0.854 (95%CI: 0.759-0.949)
	SEN	0.595	0.857	0.691
	SPE	0.727	0.727	0.910
	ACC	0.645	0.813	0.766

AUC: Area under the receiver operating characteristic curve; SEN: Sensibility; SPE: Specificity; ACC: Accuracy.