Table 2 Variables showing a clinically relevant association (defined as a strong OR ≥ 2 or OR ≤ 0,5) with complicating delirium (univariable regression analysis including all patients n = 404)

IPM

0.03

0.09

0.01–0.7

204

Cognitive impairment to dementia

0.001

9.5

2.7–33.5

68

Nursing home resident

0.001

8.1

2.3–28.3

77

Intensive care stay

0.012

4.8

1.4–16.0

85

Anemia

0.17

2.4

0.7–8.1

174

BMI ≤20 kg/m2

0.4

2.5

0.3–21.5

19 (m¹62)

COPD

0.2

2.9

0.6–14.1

30

Diabetes mellitus

0.2

2.3

0.7–7.8

139

Infection requiring antibiotics

0.003

6.6

1.9–23.2

89

Fall in hospital

0.2

2.8

0.5–13.5

31

Men

0.2

2.0

0.6–6.8

119

Parkinson’s disease

0.05

4.9

1.0–24.5

19

Chronic hemodialysis

0.3

3.2

0.4–26.8

13

Atrial fibrillation

0.05

12.0

1.0–143.9

13 (m¹324)

Antipsychotics

0.001

12.3

3.5–43.5

56

NSAIDs

0.3

2.0

0.5–7.9

64

Paracetamol / Metamizole

0.2

3.0

0.6–13.9

246

Muscle relaxants

0.2

4.8

0.5–42.2

9

Digitalis

0.4

2.0

0.4–9.7

41

Corticosteroids

0.3

2.3

0.5–11.3

36

Antifungal drugs

0.09

6.5

0.7–58.7

7

Memantine

0.4

2.5

0.3–20.8

16

Antiparkinsonian drugs

0.03

6.0

1.2–30.5

16

Xanthines

0.002

17.2

2.9–101.0

7

Fall risk scale according to Huhn

temporarily disoriented

0.006

6.7

1.7–26.1

41

permanently disoriented

0.1

3.6

0.7–19.0

37

occasional alcohol consumption

0.1

2.9

0.7–11.4

46

restrictions in mobility

0.2

3.7

0.5–29.5

136

bladder catheter / enterostoma

0.1

3.6

0.6–19.9

90

bladder / stool incontinent

0.2

3.9

0.5–28.9

41