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Table 2 Mortality within two years after extubation

From: Weak cough is associated with increased mortality in COPD patients with scheduled extubation: a two-year follow-up study

 

CPF (L/min), N = 214

p

SCSS, N = 208

p

Mortality in all patients

 < 60

N = 92

60–90

N = 85

 > 90

N = 37

 

0–1

N = 26

2–3

N = 102

4–5

N = 80

 

One Month

28 (30%)

8 (9%)

2 (5%)

 < 0.01

13 (50%)

16 (16%)

8 (10%)

 < 0.01

Three months

40 (44%)

13 (15%)

2 (5%)

 < 0.01

17 (65%)

28 (28%)

9 (11%)

 < 0.01

Six months

45 (49%)

23 (27%)

5 (14%)

 < 0.01

19 (73%)

35 (34%)

18 (23%)

 < 0.01

One year

54 (59%)

34 (40%)

8 (22%)

 < 0.01

21 (81%)

49 (48%)

24 (30%)

 < 0.01

Two years

69 (75%)

45 (53%)

14 (38%)

 < 0.01

22 (85%)

71 (70%)

32 (40%)

 < 0.01

 

CPF (L/min), N = 173

p

SCSS, N = 167

p

Mortality in discharged patients

 < 60

N = 60

60–90

N = 79

 > 90

N = 34

 

0–1

N = 12

2–3

N = 82

4–5

N = 73

 

One Month

3 (5%)

3 (4%)

0 (0%)

0.43

1 (8%)

2 (2%)

2 (3%)

0.53

Three months

9 (15%)

7 (9%)

0 (0%)

0.05

4 (33%)

8 (10%)

3 (4%)

 < 0.01

Six months

14 (23%)

17 (22%)

3 (9%)

0.20

6 (50%)

15 (18%)

12 (16%)

0.02

One year

22 (37%)

28 (35%)

5 (15%)

0.06

7 (58%)

29 (35%)

17 (23%)

0.03

Two years

37 (62%)

39 (49%)

11 (32%)

0.02

8 (67%)

51 (62%)

25 (34%)

 < 0.01

  1. CPF cough peak flow, SCSS semiquantitative cough strength score