Table 1 Baseline data of studied patients based on weaning outcome

Age (years)

61.72 ± 6.79

63.74 ± 8.70

0.22

 Male

57 (78.1%)

18 (66.7%)

0.18

 Female

16 (21.9%)

9 (33.3%)

Smoking index

800 (250–2000)

1400 (300–2400)

0.01*

APACHE

24.50 ± 4.19

29.01 ± 5.17

< 0.001 *

Duration of mechanical ventilation prior to inclusion, days

4.26 ± 1.23

9.70 ± 3.94

< 0.001*

 RR (cycle/min)

22.32 ± 4.04

31.51 ± 7.19

< 0.001*

 STV (mm³)

383.78 ± 89.55

295.48 ± 67.86

< 0.001*

 Minute ventilation (%)

8.01 ± 1.97

7.70 ± 2.13

0.50

 Peak airway pressure (mmHg)

28.28 ± 4.46

30.51 ± 5.82

0.04

 PEEP cm H₂O

4.65 ± 1.57

5.77 ± 1.22

< 0.001*

 RSBI

71.08 ± 20.24

124.92 ± 38.32

< 0.001*

 Static compliance

46.11 ± 11.56

33.40 ± 8.25

< 0.001*

 Dynamic compliance

37.42 ± 7.83

28.18 ± 6.37

< 0.001*

 Duration of sedation (days)

1.16 ± 0.38

3.18 ± 1.05

< 0.001*

PaO₂/FiO₂, mmHg

226 ± 5.2

228 ± 6.3

0.45

PaCO₂, mmHg

58.83 ± 8.5

63.73 ± 10.70

0.47

PaO₂

71.15 ± 7.73

72.63 ± 8.16

0.41