Table 1.

The feature groups that compose each one of the presented models

	DNN	MOR	HRV	META	Number of features	Number of selected features
Model 1				X	15	—
Model 2			X		16	—
Model 3		X			445	80
Model 4	X				5120	340
Model 5	X	X	X		5581	400
Model 6	X	X	X	X	5596	180

Feature selection was performed using mRMR.