Table 2 Significant associations with the diagnosis of delirium

Categorical variables

 Unemployment

12.16

< 0.001

2.71 (1.52, 4.83)

 Intensive care unit admission

38.52

< 0.01

3.61 (2.38, 5.49)

 Intubation

29.65

< 0.01

4.86 (2.63, 8.96)

 Cardiac history

44.22

< 0.001

4.90 (2.98, 8.06)

 Pulmonary history

27.93

< 0.001

2.89 (1.93, 4,32)

 Endocrinology history

27.93

< 0.001

3.049 (1.99, 4.65)

 Dementia

11.41

< 0.001

4.15 (1.71, 10.08)

 Neurology history (other than dementia)

8.07

0.004

1.81 (1.20, 2.75)

 Liver disease

7.91

0.005

2.20 (1.25, 8.86)

 Chronic kidney disease

34.16

< 0.001

3.53 (2.28, 5.48)

 Steroids

7.60

0.006

1.87 (1.19, 2.93)

 Restraints^a

8.57

0.004

5.30 (1.53, 18.41)

Continuous variables

 Risk factor

Mann-Whitney U standardized test statistic

P value

 Age (in years)

9.40

< 0.001

 Days till psychiatry consult

6.71

< 0.001

 Length of hospital stay (in days)

6.64

< 0.001