Table 2 Descriptive statistics of baseline characteristics of the study population stratified by hospital survival state

Number of patients

9643

3726

Age (mean (SD))

59.9 (12.1)

68.59 (9.0)

< 0.001

Male (%)

6486 (67.3)

2740 (73.5)

< 0.001

BMI (mean(SD))

29.8 (5.6)

28.96 (5.5)

< 0.001

Chronic diagnosis

 Respiratoir insufficiency

1097 (11.4)

710 (19.1)

< 0.001

 Renal insufficiency

270 (2.8)

347 (9.3)

< 0.001

 Chirrosis

25 (0.3)

32 (0.9)

< 0.001

 Malignancy

171 (1.8)

64.8 (1.7)

< 0.001

 Immunological insufficiency

714 (7.4)

524 (14.1)

 Cardiovasculair insufficiency

103 (1.1)

105 (2.8)

< 0.001

Number of comorbidities (mean (SD))

0.44 (0.7)

0.76 (0.9)

< 0.001

Admission type N(%)

0.31

 Medical

9457 (98.3)

3668 (98.7)

 Urgent surgery

114 (1.2)

31 (0.8)

 Elective surgery

49 (0.5)

18 (0.5)

 Missing admission type or died before ICU admission

23 (3.6)

9 (0.2)

Mechanical ventilated in first 24 hrs of ICU admission

5672 (58.8)

2638 (70.8)

< 0.001

APACHE III score

56.57 (18.3)

72.52 (23.8)

< 0.001

ICU mortality N(%)

In-hospital mortality N(%)

0 (0)

3726 (100)