Table 5.

Performance of DL (Yolo) risk model with respect to the different number of training samples for the training and validation cohorts.

	Test
Number of samples	Hazard ratio (95% CI)		p-value	C-index
Whole (n = 432)	7.6277 (2.2870–25.4399)		0.0027	0.7593
300	6.4256 (1.9081–21.6386)		0.0071	0.7950
200	4.0644 (1.2211–13.5284)		0.0478	0.6368
100	2.6913 (0.8064–8.9821)		0.1927	0.5988
	Validation
Number of samples	Hazard ratio (95% CI)		p-value	C-index
Whole (n = 432)	6.5362 (2.1773–19.6213)		0.0022	0.7696
300	3.9521 (1.3726–11.3794)		0.0228	0.7724
200	2.4826 (0.8542–7.2149)		0.1620	0.5135
100	2.2463 (0.8442–7.1475)		0.1686	0.5391