Table 4.

Performance of the clinical, radiomic and the combined models

Endpoint	Group	Models	AUC (95% CI)	p value	Accuracy (%)	Sensitivity (%)	Specificity (%)
3-Year CSS	Training	Clinical model	0.839 (0.735–0.914)	< 0.001	78.4	70.5	90.0
		Radiomic model	0.886 (0.790–0.948)	< 0.001	81.1	90.0	77.3
		Combined model	0.914 (0.825–0.966)	< 0.001	86.5	96.7	79.5
	Validation	Clinical model	0.757 (0.580–0.887)	0.005	73.5	78.6	70.0
		Radiomic model	0.818 (0.648–0.929)	< 0.001	76.5	100.0	60.0
		Combined model	0.843 (0.677–0.944)	< 0.001	79.4	85.7	75.0

The criterion values recommended by the MedCalc software for accuracy calculation for the clinical, radiomic, and combined model were 0.2865, 0.3324, and 0.2737 in the training group and 0.3625, 0.2101, and 0.4332 in the validation group, respectively

CSS cancer-specific survival