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Table 2 Detail of mortality prediction model of development dataset (n = 939,409)

From: Assessment of hospital performance with a case-mix standardized mortality model using an existing administrative database in Japan

  

odds ratio

95% CI

   

lower

upper

Major Diagnostic

Digestive system

1.81

1.73

1.89

Category

Respiratory System

1.56

1.48

1.65

 

Blood and Blood Forming Organs and Immunological Disorders

5.49

5.16

5.84

 

Kidney

1.40

1.32

1.49

 

Nervous System

1.80

1.71

1.89

 

Circulatory System

1.76

1.67

1.85

 

Female, Breast

1.16

1.07

1.27

 

Endocrine

0.62

0.56

0.69

 

Skin, Ear, Eye, Pediatric and Newborn

0.39

0.35

0.42

 

Musculoskeletal, injuries and others

1.00

(reference)

 

Sex

Male

1.23

1.20

1.26

Age (years)

under50, 50-59, 60-69,70-79, 80-89, 90 and over

1.45

1.44

1.46

Total score of Charlson Index

score0

1.00

(reference)

 
 

score1,2

1.23

1.20

1.27

 

score3-6

3.17

3.05

3.29

 

score7-12

5.92

5.61

6.26

 

score13-

10.30

9.51

11.14

Admission Status

Status emergency

2.80

2.71

2.89

 

Use of an ambulance

2.39

2.33

2.46

 

Hospitalization for examination

0.11

0.09

0.13

 

Planned short-term admission

0.25

0.23

0.28

Performance Status

grade0, grade1, or missing

1.00

(reference)

 
 

grade2

3.00

2.79

3.23

 

grade3

7.29

6.81

7.81

 

grade4

23.98

22.35

25.73

Fletcher Hugh-Jones Classification

class1, class2, or missing

1.00

(reference)

 
 

class3, class4

1.47

1.38

1.57

 

class5

5.26

4.97

5.57