A comparison of the CAM-ICU and the NEECHAM Confusion Scale in intensive care delirium assessment: an observational study in non-intubated patients

Table 1 Description of the included population

	n = 172 patients	Cardiac surgery 23.3%	Non-cardiac surgery 37.2%	Internal medicine 40.5%	P value of difference
Age in years, mean (SD)	60 (14.9)	67 (10.2)	58 (14.4)	58 (16.4)	0.002^a
Male gender	n = 102	28.4%	39.2%	32.4%	0.04^b
Female gender	n = 70	15.7%	34.3%	50.0%
APACHE II score, mean (SD)	20.6 (9.0)	-	20.1 (8.0)	21.1 (10.0)	0.65^a
TISS 28 score, mean (SD)	28.6 (5.4)	32.7 (4.7)	28.4 (4.5)	26.5 (5.4)	<0.001^a
Length of stay in days, mean (SD)	7.0 (8.9)	5.7 (8.5)	7.3 (10.2)	7.4 (7.9)	0.59^a

^aP value of difference calculated with one-way analysis of variance. ^bP value of difference calculated with the chi-square test. APACHE, Acute Physiology And Chronic Health Evaluation; SD, standard deviation; TISS 28, Simplified Therapeutic Intervention Scoring System 28.

ISSN: 1364-8535