Delirium in Australian Hospitals: A Prospective Study

Table 3

Significant predictors of delirium and adverse outcomes in hospitalized older patients.

Outcome	Predictor	Odds ratio	95% confidence interval	𝑃 value
Delirium at admission	Diagnosis of dementia	3.18	1.65–6.14	<0.001**
	Age	1.09	1.03–1.14	<0.001**
Incident delirium	Diagnosis of dementia	4.82	2.19–10.62	<0.001**
	Length of stay	1.08	1.05–1.12	<0.001**
Delirium not resolved by discharge	No variables significant
Falls in hospital	Length of stay	1.07	1.05–1.11	<0.001**
	Delirium at admission	2.83	0.99–8.02	0.050
In-hospital mortality	Delirium at admission	5.19	1.27–21.24	0.022*
	Incident delirium	31.07^†	9.30–103.78	<0.001**
Deceased at 28 days of followup	VES-13 score	1.71	1.14–2.57	0.009*
	Length of stay	1.04	1.00–1.08	0.034*
Discharged to a higher; care level	Length of stay	1.10	1.07–1.14	<0.001**
	Age	1.14	1.06–1.23	0.001*
	Male gender	4.18	1.16–15.09	0.029*
Readmission to hospital; within 28 days; after discharge	No variables significant

†Of the 14 patients who died in hospital, 9 had incident delirium. *𝑃<0.05; **𝑃<0.001.