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Table 1 Patient’s baseline characteristics

From: The prognostic accuracy evaluation of SAPS 3, SOFA and APACHE II scores for mortality prediction in the surgical ICU: an external validation study and decision-making analysis

 

Total

Intra-ICU

In-hospital

Alive

Deaths

p value

Relative risk (95% CI)

Alive

Deaths

p value

Relative risk (95% CI)

Age median (IQR)

58 (47–67)

58 (47–67)

63 (53–70)

< 0.001*

 

57 (46–67)

63 (54.5–71)

< 0.001*

 

Male sex count (%)

1798 (59.8)

1693

105

0.21**

 

1631

167

0.37**

 

The urgency of the surgical procedure count (%)

Urgent

220 (7.3)

170

50

  

152

68

  

Elective

2788 (92.7)

2675

113

  

2588

200

  

Preexistent conditions count (%)

Arterial hypertension

1537 (51.1)

1452

85

0.72**

 

1394

143

0.40**

 

Diabetes mellitus

634 (21.1)

604

30

0.39**

 

570

64

0.24**

 

Alcohol use

371 (12.3)

347

24

0.34**

 

335

36

0.57**

 

Tobacco use

1085 (36.1)

1029

56

0.64**

 

1001

84

0.09**

 

Intra-ICU length of stay days median (IQR)

3 (2–5)

3 (2–5)

7 (3–15)

< 0.001*

     

In-hospital length of stay days median (IQR)

12 (8–20)

    

11 (7–19)

17 (9–34.5)

< 0.001*

 

Severity Scores median (IQR)

SOFA

3 (2–6)

3 (2–6)

7 (5–9)

< 0.001*

 

3 (2–6)

6 (4–9)

< 0.001*

 

APACHE II

12 (9–15)

11 (8–14)

17 (13–22)

< 0.001*

 

11 (8–14)

16 (13–20)

< 0.001*

 

SAPS 3

36 (28–44)

36 (28–43)

52 (43–60)

< 0.001*

 

35 (28–43)

48 (41–58)

< 0.001*

 

Life support therapies

Mechanical ventilation count (%)

1491 (49.6)

1333

158

< 0.01**

3.97 (1.59–9.95)

1269

222

< 0.01**

1.44 (1.07–1.93)

Length of mechanical ventilation days median (IQR)

1 (1–2)

1 (1–1)

7 (2–12)

< 0.01*

 

1 (1–1)

5 (2–11)

< 0.01*

 

Renal replacement therapy count (%)

143 (4.8)

93

50

< 0.01**

1.9 (1.42–2.53)

78

65

< 0.01**

1.78 (1.43–2.22)

  1. *Mann–Whitney
  2. **Chi-squared