Table 2 Results of multiple logistic regression analysis for postoperative delirium

Age (years)

1.13

1.05–1.22

0.001

Sex: male

0.21

0.04–1.14

0.072

Body mass index (kg/m²)

0.83

0.71–0.97

0.023

 Hypertension

0.8

0.31–2.10

0.66

 Ischemic heart disease

1.25

0.32–4.74

0.74

 Symptomatic stroke

1.11

0.31–3.89

0.86

 Diabetes

1.07

0.38–3.02

0.89

 Normal

1

 Obstructive lung disease

1.75

0.69–4.41

0.23

 Restrictive lung disease

0.5

0.09–2.86

0.44

Plasma albumin (g/dL)

0.85

0.27–2.64

0.78

Plasma creatinine (mg/dL)

0.56

0.14–2.23

0.41

 1 or 2

1

 3

0.68

0.17–2.7

0.58

5-ALA

1.03

0.39–2.71

0.95

Anesthetics

 Inhalation agents

1

 Propofol

2.52

0.41–15.1

0.31

Intraoperative hypotension

0.88

0.23–3.32

0.85

Duration of anesthesia (min)

1.01

0.99–1.01

0.24