. Author manuscript; available in PMC: 2014 Sep 1.

Published in final edited form as: J Hosp Med. 2013 Aug 19;8(9):500–505. doi: 10.1002/jhm.2077

Table 2.

Logistic, ANCOVA or Linear Regression Models of Incident Delirium Measures on Mortality, Length of Stay, Change in IADLs and Change in ADLS

Variable	Level	Adjusted^* Estimate of Association	p-value
OUTCOME MORTALITY
Incident Delirium^, OR (95% CI)**	Yes	2.33 (0.82 – 6.61)	0.1130
Incident Delirium^, OR (95% CI)**	No	1.00	0.1130
Maximum Incident Delirium Severity^, OR (95% CI)**		1.05 (0.96 – 1.14)	0.2719
Number of Inpatient Days with Positive Delirium^, OR (95% CI)**		1.15 (0.89 – 1.49)	0.2871
OUTCOME LOS
Incident Delirium^*, means (SE)**	Yes	9.2 (0.7)	<0.0001
Incident Delirium^*, means (SE)**	No	5.6 (0.5)	<0.0001
Maximum Incident Delirium Severity^**, slope (SE)**		0.43 (0.06)	<0.0001
Number of Inpatient Days with Positive Delirium^**, slope (SE)**		1.80 (0.21)	<0.0001
OUTCOME – CHANGE IN LAWTON IADLS FROM ADMISSION TO FOLLOWUP
Incident Delirium^*, means (SE)**	Yes	0.51 (0.33)	0.3787
Incident Delirium^*, means (SE)**	No	0.15 (0.20)	0.3787
Maximum Incident Delirium Severity^**, slope (SE)**		−0.003 (0.03)	0.9260
Number of Inpatient Days with Positive Delirium^**, slope (SE)**		0.16 (0.11)	0.1497
OUTCOME – CHANGE IN KATZ IMPAIRED ADLS FROM ADMISSION TO FOLLOWUP
Incident Delirium^*, means (SE)**	Yes	0.19 (0.26)	0.5086
Incident Delirium^*, means (SE)**	No	0.40 (0.17)	0.5086
Maximum Incident Delirium Severity^**, slope (SE)**		0.05 (0.03)	0.0437
Number of Inpatient Days with Positive Delirium^**, slope (SE)**		0.13 (0.09)	0.1717

Adjusted for age, gender and GDS score

^**

Logistic Regression

^***

One-way ANOVA

^****

Simple linear regression

Activities of daily living (ADL), Instrumental activities of daily living (IADL)