Table 9.

K=10-fold cross validation results for all selected balanced training database: 472 abnormal and 472 normal recordings.

Fold iterate	K-fold (10-fold) cross validation on the selected balanced training set
	Aa	An	Na	Nn	Se	Sp	Score
1	30	17	13	34	0.64	0.72	0.68
2	25	22	18	29	0.53	0.62	0.57
3	30	17	16	32	0.64	0.67	0.65
4	31	17	14	33	0.65	0.70	0.67
5	31	16	11	36	0.66	0.77	0.71
6	30	17	16	31	0.64	0.66	0.65
7	21	26	18	29	0.45	0.62	0.53
8	29	18	16	31	0.62	0.66	0.64
9	30	18	10	38	0.63	0.79	0.71
10	30	17	14	33	0.64	0.70	0.67
Mean	29	19	15	33	0.61	0.69	0.65
SD	3	3	3	3	0.07	0.06	0.06

Note: SD, standard deviation.