Informant single screening questions for delirium and dementia in acute care – a cross-sectional test accuracy pilot study

Table 3 Analysis of diagnostic accuracy

	Single question for acute confusion	Single question for chronic deterioration in memory
	CAM + ve	IQCODE <3.38
Area Under Curve (95% CI)	0.67 (50.8-82.3)	0.88 (79.6-96.8)
Sensitivity of Single Question	10/13	35/42
(%, 95% CI)	(76.9)	(83.3)
Specificity of Single Question	32/57	27/29
(%)	(56.1)	(93.1)
Positive Predictive Value of Single Question	10/32	35/37
(%)	(28.6)	(94.6)
Negative Predictive Value of Single Question	32/35	27/24
(%)	(91.4)	(79.4)

Abbreviations: CAM Confusion assessment method, MMSE Mini-mental state examination, IQCODE Informant questionnaire on cognitive decline in the elderly.

ISSN: 1471-2318