Table 2.

Sensitivity, specificity, and AUC for the 5-fold cross-validations of the different classifiers.

		With RP0-20			Without RP0-20
		Sensitivity	Specificity	AUC	Sensitivity	Specificity	AUC	P value
HC vs PD	Front	77	76	0.77	75	76	0.72	0.42
	Back	84	91	0.89	74	67	0.77	0.0037
	Front + Back	78	91	0.87	69	81	0.81	0.053
HC vs D	Front	45	76	0.58	54	76	0.59	0.63
	Back	80	71	0.8	61	71	0.69	0.041
	Front + Back	71	95	0.85	51	91	0.71	0.0063
PD vs D	Front	86	57	0.67	52	62	0.53	0.32
	Back	76	71	0.77	57	52	0.54	0.049
	Front + Back	71	81	0.79	62	57	0.55	0.041

AUC – area under curve; D – patients discharged from the hospital; HC – healthy controls; PD – peak disease.