Skip to main content

Table 1 Patients' demographics

From: Assessment of performance of four mortality prediction systems in a Saudi Arabian intensive care unit

Variable

Total

Survivors

Non-survivors

P value*

Total number

969 (100)

659 (100)

310 (100)

-

Number of females

363 (37.46)

246 (37.33)

117 (37.74)

NS

Age in years (mean ± SD)

49.09 ± 20.19

45.78 ± 20.09

56.15 ± 18.53

<0.001

Lead time in days (mean ± SD)

4.08 ± 8.93

3.66 ± 8.04

4.98 ± 10.53

0.05

ICU LOS in days (mean ± SD)

6.58 ± 9.76

5.99 ± 8.80

7.82 ± 11.44

0.01

Hospital LOS in days (Mean ± SD)

31.75 ± 43.80

35.17 ± 43.27

24.45 ± 44.14

<0.001

APACHE II score (mean ± SD)

18.85 ± 9.13

15.75 ± 7.46

25.63 ± 8.80

< 0.001

SAPS II score (mean ± SD)

38.02 ± 19.90

31.20 ± 15.63

52.98 ± 20.11

< 0.001

Type of admission

    

   Medical

662 (68.32)

404 (61.31)

258 (83.23)

<0.001

   Elective surgical

173 (17.85)

155 (23.52)

18 (5.81)

<0.001

   Emergency surgical

134 (13.83)

100 (15.17)

34 (10.97)

NS

   Chronic illness:

    

Hepatic

121 (12.5)

32 (4.86)

89 (28.71)

<0.001

Cardiovascular

35 (3.62)

24 (3.64)

11 (3.55)

NS

Renal

54(5.58)

32(4.86)

22 (7.10)

NS

Respiratory

68 (7.02)

55 (8.35)

13 (4.19)

0.02

Immunosuppression

85 (8.78)

39 (5.92)

46 (14.84)

<0.001

Any of the above

310 (32.02)

166 (25.19)

144 (46.45)

<0.001

ICU mortality

204 (21.05)

0

204 (65.81)

 
  1. Figures in parentheses are percentages. *Survivors versus non-survivors. LOS, length of stay; NS, not significant.