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Table 2 Within-occasion coefficient of variation for all measurements

From: Increased duration of mechanical ventilation is associated with decreased diaphragmatic force: a prospective observational study

Patient number

Measurement occasion

Pdi (cm H2O)

Coefficient of variation (%)

1

M1

12.1

5.6

1

M2

12.4

6.7

2

M1

8.3

3.9

4

M1

12.9

12.2

4

M2

10.4

11.1

5

M1

9.1

9.2

5

M2

8.3

8.8

6

M1

15.4

8.1

6

M2

15.8

8

7

M1

8.4

12.8

7

M2

10.6

2.2

8

M1

9.2

5.2

9

M1

8.9

19.4

9

M2

11.2

1.2

10

M1

18.7

6.0

10

M2

21.9

4.1

10

M3

18.9

2.6

10

M4

22.3

3.4

Mean

  

7.25

  1. Pdi, transdiaphragmatic pressure.