Cognitive Assessment Test: Validation of a Short Cognitive Test for the Detection of Mild Cognitive Disorder

Table 3

CATest performance at cut-off point.

Cut-off point- ->	14		18
		CI 95		CI 95
Sensitivity	86,80%	72,67 - 94,24	84,30%	76 - 90,16
Specificity	88,90%	83,12 - 92,85	71,40%	61,80 - 79,43
Positive predictive value	64,70%	50,98 - 76,36	75,40%	66,79 - 82,42
Negative predictive value	96,60%	92,38 - 98,55	81,40%	71,89 - 88,21
Proportion of false positives	11,10%	7,14 - 16,8	28,60%	20,56 - 38,19
Proportion of false negatives	13,20%	5,75 - 27,32	15,70%	9,89 - 23,97
Accuracy	88,50%	83,33 - 92,21	78,00%	71,76 - 83,18
Diagnostic odds ratio	52,8	18,28 - 152,48	13,44	6,73 - 26,8
Youden’s J index	0,8		0,6
Likelihood ratio LR (+)	7,82	4,96 - 12,29	2,95	2,13 - 4,08
Likelihood ratio LR (-)	0,15	0,06 - 0,33	0,22	0,13 - 0,34