Table 2.

Logistic regression analysis: factors associated with delirium in medically hospitalized patients (n = 327).

Factor	Odd Ratio (OR)	p Value	95% CI
Pre-existing cognitive impairment	4.0	<0.01	1.8–9.0
Poor functional ability	1.9	0.02	1.1–3.4
Use of any medications known to precipitate delirium	2.3	0.04	1.1–4.9
Polypharmacy	5.7	0.03	1.1–28.2
Urinary catheter	2.2	<0.01	1.3–3.8
Dehydration	3.1	<0.01	1.8–5.3
Electrolytes derangement	2.0	0.03	1.1–3.8