Table 1: Patient characteristics.

Patient Characteristics

All Patients (n = 101)

Successful Extubation (n = 90)

Failed Extubation (n = 11)

p value

Median ± SD

Median ± SD

Median ± SD

Age (years)

69 ± 14.14

68 ± 14.50

72 ± 10.82

0.56

BMI

23.33 ± 3.33

23.31 ± 3.47

23.7 ± 1.81

0.87

APACHE II Score

19 ± 7.73

18.5 ± 7.89

22 ± 6.44

0.49

SAPS II score

52 ± 12.02

52 ± 12.32

52 ± 8.48

0.36

Mechanical Ventilation (days)

4 ± 3.70

4 ± 3.43

5 ± 5.4

0.14

Pulse Rate (min)

88 ± 19.75

88 ± 9.48

89 ± 18.9

0.68

Breath Rate (min)

22 ± 5.53

21.5 ± 5.39

24 ± 6.73

0.31

RSBI

54 ± 25

56.5 ± 23.94

47 ± 33.33

0.27

PiMax (-)

30 ± 9.98

30 ± 10.00

36 ± 10.09

0.59

VT (ml)

389 ± 172.02

382.50 ± 175.22

459 ± 149.81

0.58

Hemoglobin (g/dL)

10.7 ± 1.74

10.9 ± 1.75

9.1 ± 1.10

0.002

Hematocrit (%)

32.10 ± 5.06

32.7 ± 5.05

28.1 ± 2.95

0.001

ICU stay (days)

7 ± 7.04

6 ± 5.52

22 ± 7.78

< 0.001

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RSBI: rapid shallow breath index; PiMax: maximal inspiratory pressure; VT: tidal volume; ICU: intensive care unit