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Table 1 Baseline characteristics of study participants

From: Effect of abdominal weight training with and without cough machine assistance on lung function in the patients with prolonged mechanical ventilation: a randomized trial

Variable

AWT (n = 12)

mean ± SD

AWT + CM (n = 14)

mean ± SD

Control (n = 14)

mean ± SD

p-value

Age (years)

72.08 ± 10.88

73.50 ± 10.73

67.79 ± 9.98

0.335

 Sex (male/female)

6/6

8/6

8/6

0.917

 Weight (kg)

60.40 ± 15.91

66.43 ± 14.48

58.89 ± 9.66

0.424

 Body Mass Index (BMI)

22.29 ± 4.69

25.21 ± 5.03

22.82 ± 3.05

0.258

 Total duration of MV (days)

34.83 ± 18.52

37.36 ± 15.25

40.57 ± 16.91

0.550

 Ventilator days during RCC (days)

14.08 ± 12.44

19.14 ± 12.76

21.29 ± 14.55

0.381

 Length of stay during RCC (days)

19.33 ± 11.59

24.21 ± 11.81

25.50 ± 12.88

0.331

Mortality prediction

    

 Charlson Comorbidity Index, CCI

6.83 ± 1.64

7.00 ± 2.69

6.36 ± 2 .76

0.688

 APACHE II score

14.58 ± 3.66

15.21 ± 2.81

14.07 ± 2.95

0.673

Artificial airway, n (%)

    

 APACHE II score

9 (75.0)

11 (78.6)

8 (57.1)

0.420

 Tracheostomy

3 (25.0)

3 (21.4)

6 (42.9)

 

Primary problems at admission to RCC, n (%)

 Pulmonary diseases

4 (33.3)

7 (50.0)

7 (50.0)

0.687

 Cardiovascular diseases

5 (41.7)

3 (21.4)

3 (21.4)

 

 Neuromuscular diseases

3 (25.0)

3 (21.4)

2 (14.3)

 
  1. The data are presented as mean ± standard deviation
  2. A = Abdominal weight training, AWT group, B = cough machine assisted abdominal weight training, AWT + CM group, C = Control group
  3. *Kruskal–Wallis measures analysis, p < 0.05