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Table 3 Univariate and multivariate analyses of factors associated with delirium

From: “Delirium Day”: a nationwide point prevalence study of delirium in older hospitalized patients using an easy standardized diagnostic tool

  

Univariate analysis

Multivariate analysis

 

Number

OR

95 % CI

p value

OR

95 % CI

p value

Age

 

1.07

1.05–1.09

<.001

1.03

1.01–1.05

.006

Female sex

180/785

.99

.80–1.24

.97

--

--

--

Education, years

 

.96

.93–.99

.008

1.00

.97–1.04

.77

Rehabilitation wards

35/250

Ref

  

Ref

  

Geriatrics wards

285/1154

2.02

1.38–2.95

<.001

1.15

.72–1.83

.56

Orthopedic surgery wards

22/107

1.59

.88–2.87

0.12

--

--

--

Neurology wards

45/158

2.45

1.49–4.02

<.001

2.00

1.10–3.64

.02

Internal Medicine wards

42/198

1.65

1.01–2.71

.05

1.40

.77–2.57

.27

ADL (functions lost)

 

1.45

1.38–1.53

<.001

1.19

1.12–1.27

<.001

Dementia (yes/no)

243/465

7.16

5.64–9.08

<.001

3.25

2.41–4.38

<.001

Malnutrition (yes/no)

58/133

2.84

1.98–4.08

<.001

2.01

1.29–3.14

.002

Antihypertensives (yes/no)

241/1180

.68

.55–.85

.001

.84

.64–1.09

.18

Statins/lipid lowering (yes/no)

45/342

.45

0.32–0.63

<.001

.79

.53–1.17

.23

Antibiotics (yes/no)

186/619

1.78

1.42–2.22

<.001

1.24

0.93–1.64

.14

Antipsychotics (yes/no)

132/263

4.43

3.38–5.82

<.001

2.03

1.45–2.82

<.001

Antidepressants (yes/no)

112/390

1.47

1.15–1.90

.003

1.03

.76–1.41

.83

Antiulcer drugs (yes/no)

270/1250

.79

.63–.99

.04

.86

.65–1.13

.27

AChE-I/memantine (yes/no)

15/39

2.14

1.11–4.11

.03

.91

.42–1.97

.81

Feeding tubes (NT or PEG) (yes/no)

20/40

3.47

1.85–6.51

<.001

2.51

1.11–5.66

.03

Peripheral venous catheters (yes/no)

244/848

1.82

1.47–2.27

<.001

1.41

1.06–1.87

.02

Urinary catheters (yes/no)

199/539

2.79

2.23–3.50

<.001

1.73

1.30–2.29

<.001

Physical restraints (yes/no)

268/695

3.94

3.15–4.94

<.001

1.84

1.40–2.40

<.001

  1. OR odds ratio, 95 % CI 95 % confidence interval, Ref reference value for the hospital wards, ADL Activities of Daily Living score, AChE-I acetylcholinesterase inhibitors, NT nasogastric tube, PEG percutaneous endoscopic gastrostomy