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Table 2 Demographic and clinical data for APACHE II sample

From: Performance of the score systems Acute Physiology and Chronic Health Evaluation II and III at an interdisciplinary intensive care unit, after customization

Patient characteristic

Development

Validation

Cases (n)

1863

932

Age (mean ± SD)

62.5 ± 16.1

61.8 ± 16.3

Medical (%)

65.5

66.0

Surgical (%)

34.5

34.0

Direct admission (%)

69.9

68.1

Referral (%)

30.1

31.9

< 65 years (%)

49.1

52.0

≥ 65 years (%)

50.9

48.0

Cardiovascular (%)

38.9

38.6

Gastrointestinal (%)

32.9

31.8

DOS ICU (mean ± SD)

3.95 ± 7.0

3.48 ± 5.4

DOS hospital (mean ± SD)

25.35 ± 22.4

25.26 ± 22.5

Hospital mortality (%)

18.5

17.2

APACHE II prediction (%)

17.3

16.6

APACHE III prediction (%)

14.7

14.7

  1. There were no differences for the APACHE III sample (1772/889 cases). Direct admission is defined as admission from emergency room, operating theatre, or recovery room; and transferral is defined as admission from other hospital, other ICU, or floor. DOS, duration of stay.
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