Table 2.

Predictive model performances for the three endpoints shown as mean AUCs (with 95% CIs) from 10×5-fold cross-validation and retrospective-to-prospective cohort transfer. The table includes the number of cases and the target distribution per endpoint.

	n	Conventional, imaging and radiomics parameters:	Conventional and imaging parameters only:	Conventional parameters only:
		10x5-fold cross validation	10x5-fold cross validation	10x5-fold cross validation
		Train retrospective – test prospective	Train retrospective – test prospective	Train retrospective – test prospective
Extracapsular extension	246 (66 yes, 180 no)	0.90 (0.86, 0.94) 0.90	0.90 (0.86, 0.94) 0.91	0.71 (0.63, 0.77) 0.77
Positive surgical margins	248 (45 yes, 203 no)	0.64 (0.57, 0.72) 0.63	0.60 (0.52, 0.68) 0.67	0.50 (0.41, 0.58) 0.49
Nerve-sparing approach decision	249 (133 yes, 116 no)	0.80 (0.75, 0.85) 0.81	0.79 (0.73, 0.83) 0.79	0.81 (0.76, 0.86) 0.82