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Table 1 (a) Baseline demographics of survivors versus non-survivors for all patients, (b) Baseline demographics of survivors versus non-survivors for patients admitted with respiratory disorders

From: Machine learning predicts mortality based on analysis of ventilation parameters of critically ill patients: multi-centre validation

Variables

Survivors

Non-survivors

p-value

(a) Overall cohort

Female sex n (%)

3298 (37)

1452 (37)

 

Age

58.87 ± 17.55

63.65 ± 16.16

< 0.01

Weight

75.36 ± 19.56

74.42 ± 19.32

0.01

PBW

62.17 ± 9.29

61.76 ± 9.31

0.02

BMI

26.56 ± 6.37

26.42 ± 6.29

0.25

Creatinine

1.38 ± 1.38

1.87 ± 1.66

< 0.01

Bilirubin

1.51 ± 3.39

2.55 ± 5.32

< 0.01

pH

7.40 ± 0.09

7.36 ± 0.12

< 0.01

PaCO2

39.96 ± 10.20

40.41 ± 11.81

0.15

PaO2_FiO2

257.99 ± 106.03

220.47 ± 107.66

< 0.01

peakPressure

23.98 ± 7.41

26.50 ± 7.89

< 0.01

plateauPressure

19.40 ± 5.65

21.03 ± 6.46

< 0.01

drivingPressure

12.64 ± 5.37

13.83 ± 6.13

< 0.01

appliedPEEP

6.66 ± 3.13

7.19 ± 3.60

< 0.01

tidalVolume

509.42 ± 118.72

498.82 ± 115.99

< 0.01

tidalvolume/PBW

8.30 ± 1.99

8.21 ± 2.13

< 0.01

SAPS_II

42.71 ± 17.04

55.08 ± 19.05

< 0.01

Propensity test

0.63 ± 0.03

0.63 ± 0.03

< 0.01

LOS in ICU

13.02 ± 13.45

11.70 ± 14.27

< 0.01

MV_days

8.41 ± 8.56

9.08 ± 10.10

< 0.01

(b) Cohort admitted with respiratory disorders

Female sex n (%)

653 (38)

340 (35)

 

Age

61.16 ± 17.19

63.94 ± 15.47

< 0.01

Weight

74.58 ± 23.13

71.80 ± 21.28

< 0.01

PBW

61.06 ± 9.33

61.32 ± 9.36

0.49

BMI

26.64 ± 7.80

25.58 ± 6.94

< 0.01

Creatinine

1.27 ± 1.14

1.75 ± 1.58

< 0.01

Bilirubin

1.44 ± 2.99

2.13 ± 4.66

0.01

pH

7.39 ± 0.09

7.35 ± 0.12

< 0.01

PaCO2

44.62 ± 13.13

45.14 ± 13.88

0.12

PaO2_FiO2

218.65 ± 94.10

178.84 ± 92.50

< 0.01

peakPressure

26.49 ± 8.13

29.07 ± 8.27

< 0.01

plateauPressure

21.41 ± 6.18

23.03 ± 6.75

< 0.01

drivingPressure

13.77 ± 5.80

14.70 ± 6.73

< 0.01

appliedPEEP

7.52 ± 3.77

8.27 ± 4.02

< 0.01

tidalVolume

478.62 ± 122.74

481.34 ± 121.99

< 0.01

tidalvolume/PBW

7.95 ± 2.15

7.97 ± 2.09

< 0.01

SAPS_II

43.37 ± 16.27

51.02 ± 18.30

< 0.01

Propensity test

0.64 ± 0.03

0.64 ± 0.03

< 0.01

LOS in ICU

15.72 ± 15.93

13.78 ± 15.74

< 0.01

MV_days

10.20 ± 10.51

10.48 ± 10.77

0.52