Table 2.

Comparison of CAD tests by incident dementia during follow-up

	Non-demented N=251	Incident Dementia N=23
Percent correct	Mean (sd)	Mean (sd)	P-value
DSI *	73 (24)	37 (34)	<0.01
DDT+	75 (16)	58 (18)	<0.01
SSI-ICM #	74 (25)	55 (29)	<0.01
Moderately abnormal test (<80% correct)	N (%)	n (%)	P-value
DSI *	112 (44.6)	19 (82.6)	<0.01
DDT+	127 (50.6)	20 (87.0)	<0.01
SSI-ICM #	106 (42.2)	17 (73.9)	<0.01
Severely abnormal test (<50% correct)	N (%)	n (%)	P-value
DSI *	29 (11.6)	15 (65.2)	<0.01
DDT+	22 (8.8)	5 (21.7)	0.046
SSI-ICM #	48 (19.1)	10 (43.5)	<0.01

^*Dichotic Sentence Identification (DSI), Free report mode; worse ear score

⁺Dichotic Digits Test

^#Synthetic Sentence Identification with Ipsilateral Competing Message