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Table 2 Estimation of logistic regression parameters to predict in-hospital death

From: A comparison between the APACHE II and Charlson Index Score for predicting hospital mortality in critically ill patients

Co-morbidity

Charlson weight

Persons with co-morbidity(%)

OR (95%CI)

ICU weight †

Hospital mortality associated with individual co-morbidity(%)

Chronic pulmonary disease

1

16.38

0.84 (0.67, 1.04)

 

27.46

Congestive heart failure

1

12.92

1.06 (0.84, 1.33)

 

35.86

Diabetes without complications

1

12.44

0.77 (0.61, 0.98)

 

29.15

Myocardial infarction

1

10.03

1.47 (1.15, 1.89)

1

40.94

Renal disease

2

7.41

1.37 (1.02, 1.84)

1

40.00

Cerebrovascular disease

1

6.14

1.75 (1.28, 2.38)

2

40.94

Cancer

2

5.64

1.46 (1.06, 2.00)

1

40.38

Peripheral vascular disease

1

5.61

1.30 (0.94, 1.80)

1

41.51

Paraplegia and hemiplegia

2

4.71

1.27 (0.88, 1.83)

1

32.02

Metastatic carcinoma

6

5.64

1.50 (1.06, 2.13)

2

62.96

Mild liver disease

1

4.08

2.50 (1.69, 3.70)

2

52.60

Diabetes with complications

2

4.08

0.63 (0.42, 0.96)

 

29.22

Moderate or severe liver diseases

3

2.86

3.85 (2.41, 6.14)

4

62.96

Dementia

1

2.38

0.70 (0.43, 1.14)

 

33.33

Peptic ulcer disease

1

2.17

0.87 (0.51, 1.48)

 

31.70

Connective tissue-rheumatic diseases

1

1.85

0.91(0.52, 1.60)

 

31.43

HIV

6

0.11

1.26(0.11, 14.2)

1

25.00

  1. † ICU weights calculated from logistic regression model. A blank space means that a null value was assigned to this co-morbidity.