Skip to main content

Table 1 Descriptive statistics at baseline and follow-up for spirometry, 6MWT, and SGRQ results

From: An initial evaluation of the safety of a disposable oscillating positive expiratory pressure device in patients with chronic obstructive pulmonary disease: a short-term pilot study

 

Spirometry

6MWT

SGRQ

FEV1 (L)

FVC (L)

FEV1/FVC

Distance (m)

Mean SpO2 (%)

Symptoms

Activity

Impact

Total

Baseline

         

(n)

24

24

24

18

18

20

20

20

20

Mean

1.410

2.744

0.514

404.72

93.05

60.63

56.14

27.96

42.07

95% CI Lower

1.129

2.383

0.442

345.32

91.54

53.03

43.9

21.46

34.76

95% CI Upper

1.692

3.105

0.587

464.11

94.56

68.23

68.38

34.45

49.37

Median

1.275

2.750

0.508

422.00

92.50

60.92

52.84

28.86

40.01

Standard Dev

0.666

0.855

0.173

119.43

3.03

16.23

26.14

13.87

15.6

Min

0.550

1.180

0.230

180.00

85.00

21.65

7.64

6.04

16.08

Max

2.760

4.390

0.840

575.00

99.00

90.73

100

55.67

70.63

Skewness

0.642

0.180

0.019

− 0.439

− 0.526

− 0.293

0.098

0.279

0.078

Kurtosis

− 0.646

− 0.570

− 0.915

− 0.786

2.217

0.73

− 0.931

− 0.505

− 0.934

Follow up

         

(n)

24

24

24

18

18

19*

20

20

20

Mean

1.460

2.764

0.521

431.28

92.84

60.99

58.74

31.82

42.8

95% CI lower

1.147

2.400

0.446

372.14

91.39

51.45

48.89

23.66

36.71

95% CI upper

1.774

3.128

0.597

490.40

94.29

70.52

68.58

39.99

48.89

Median

1.280

2.700

0.547

435.00

93.17

5915

60.335

30.94

39.6

Standard Dev

0.742

0.861

0.179

118.90

2.91

19.78

21.03

17.44

13.01

Min

0.560

1.170

0.220

270.00

86.00

32.26

22.2

4.76

14.04

Max

3.290

4.840

0.880

655.00

97.00

97.05

92.45

79.14

65.12

Skewness

0.851

0.415

0.600

0.276

− 1.038

0.096

− 0.344

0.911

0.018

Kurtosis

0.206

0.154

− 0.784

− 1.003

0.994

− 0.975

− 0.924

1.69

− 0.131

  1. *The Symptom score for participant ID66 was not exported by the SGRQ app