Table 5. Goodness of fit test for ANNs in identifying patients with a SDI≥1 (A) and SDI≥5 (B).

	Testing on subset	Sensitivity (%)	Specificity (%)	Overall accuracy (%)
A	1a	73.4	78.9	76.2
	1b	71.7	79.2	75.5
	2a	72.0	77.5	74.8
	2b	73.2	77.9	75.6
	3a	74.0	78.0	76.0
	3b	71.2	79.2	75.2
	4a	72.3	77.9	75.1
	4b	72.9	78.7	75.8
	5a	72.2	78.8	75.5
	5b	72.1	78.9	75.5
	Average	72.5	78.5	75.5
B	1a	77.3	87.9	82.6
	1b	72.4	87.6	80.0
	2a	73.2	88.4	80.8
	2b	74.5	88.2	81.4
	3a	74.5	87.6	81.1
	3b	74.2	87.5	80.9
	4a	76.6	87.8	82.2
	4b	78.0	88.2	83.1
	5a	75.4	87.3	81.4
	5b	72.3	87.3	79.8
	Average	74.8	87.8	81.3

5×2 cross validation protocol.

A: Chi square = 0.10; N.S.; B: Chi square = 0.23; N.S.