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Table 3 Comparison between the studied groups regarding diaphragm finding by ultrasound (N=40)

From: Value of incentive spirometry in routine management of COPD patients and its effect on diaphragmatic function

Rt DE (cm) (quit inspiration)

 Mean±SD

2.93±0.79

2.96±0.84

  

 Median

3.10

3.10

t test

0.915

 Range

1.20–4.00

1.20–4.00

0.107

 

Lt DE (cm) (quit inspiration)

 Mean±SD

3.54±0.85

3.56±0.87

t test

 

 Median

3.65

3.90

0.084

0.934

 Range

2.00–4.60

2.00–4.60

  

Rt DE (cm) (deep inspiration)

 Mean±SD

4.11±0.75

4.12±0.79

t test

 

 Median

4.20

4.20

0.044

0.965

 Range

2.20–5.20

2.20–5.20

  

Lt DE (cm) (deep inspiration)

 Mean±SD

4.67±0.80

4.68±0.83

t test

 

 Median

4.90

4.90

0.035

0.972

 Range

2.60–5.90

2.60–5.90

  

RT DT ratio (%)

 Mean±SD

49.5±14.2

49.4±8.03

U

 

 Median

48.5

49.0

0.268

0.789

 Range

25.0–94.0

30.0–65.0

  

Lt DT ratio (%)

 Mean±SD

57.2±11.9

55.5±8.63

U

 

 Median

56.0

55.0

0.199

0.842

 Range

35.0–94.0

35.0–70.0

  
  1. DE, diaphragmatic excursion, DT diaphragmatic thickness, U Mann–Whitney U test