Table 1 Study sample characteristics at ICU admission

Male sex (n and %)

153

55.4

77

61.6

0.295

Age (years) (median and IQR)

61

42 to 72

60

43 to 73

0.913

Emergency department^a (n and %)

176

63.8

90

72.0

0.133

Length of hospital stay before ICU admission (days) (median and IQR)

2

1-6

0

0-1

0.002

Mechanical ventilation on first ICU day (n and %)

172

62.3

78

62.4

0.924

Mechanical ventilation before ICU (n and %)

155

56.2

69

55.2

0.944

Vasoactive drug use at first ICU day (n and %)

151

54.7

60

48.4

0.242

Co-morbidities (n and %)

70

25.4

13

10.4

<0.001

TISS 28 D1 (median and IQR)

22

17 to 27

22

17 to 26

0.977

TISS 28 at discharge^b (median and IQR)

15

13 to 17

15

13 to 17

0.390

APACHE II (median and IQR)

26

16.5 to 33

25

16 to 31

0.452

ICU length of stay (median and IQR)

5.0

2.0 to 10.5

4.0

2.0 to 10.0

0.519

Hospital length of stay (median and IQR)^c

14.0

8.0 to 28.0

16.0

7.0 to 31.0

0.803