Table 3

Model performance comparison using c-index

	Hispanic-specific model	All races/ethnicity model	Black-specific model	All races/ethnicity model
Model	M_h	M_all,h	M_b	M_all,b
Test	E_h	E_h	E_b	E_b
Cox PH	0.832	0.828	0.823	0.821
GBT	0.813	0.813	0.808	0.803
ST	0.772	0.763	0.804	0.801
SSVM	0.834	0.790	0.824	0.786

GBT, Gradient Boost Tree; PH, proportional hazard; SSVM, survival support vector machine; ST, survival tree.