Radiomics of rectal cancer for predicting distant metastasis and overall survival

Table 3 Diagnostic performance of the three models in both training and validation cohorts

		Training set			Validation set
1Time		Rad-score	Clinical	Combined	Rad-score	Clinical	Combined
3-yr	AUC	0.709	0.782	0.842	0.687	0.766	0.802
	SEN	88.89%	88.33%	91.67%	80%	100%	86.67%
	SPE	42.67%	58.21%	70.15%	56.67%	50%	80%
2-yr	AUC	0.700	0.760	0.816	0.609	0.720	0.691
1-yr	AUC	0.614	0.771	0.769	0.545	0.742	0.632

¹Time: The time from surgery to the presence of distant metastases. AUC: Area under the summary receiver operating characteristic curve; SEN: Sensitivity; SPE: Specificity.