Pulmonary Function Parameters

Non-OSA group (n = 22)

Mtm-OSA group

(n = 102)

Sev-OSA group

(n = 208)

F

P-Value

Expiratory parameters of flow volume curve

FVC, L

3.53 ± 1.24

3.33 ± 1.60

3.53 ± 1.33

0.613

0.542

FVC %predicted

97.91 ± 13.42

95.94 ± 20.29

91.67 ± 17.01

2.041

0.132

FEV1, L

2.73 ± 1.29

2.96 ± 1.12

2.97 ± 0.94

0.469

0.626

FEV1 %predicted

94.46 ± 18.29

92.42 ± 22.56

93.54 ± 64.02

0.061

0.984

FEV1/FVC

80.83 ± 9.14

78.52 ± 13.32

80.01 ± 6.82

0.794

0.453

PEF, L/s

11.98 ± 19.66

7.96 ± 2.37

8.47 ± 5.72

2.350

0.097

PEF %predicted, %

94.29 ± 19.58

101.00 ± 22.97

98.55 ± 21.48

0.723

0.487

FEF50, L/s

3.48 ± 1.85

3.30 ± 2.18

3.43 ± 1.71

0.166

0.847

FEF50, %

80.73 ± 31.19

80.95 ± 35.74

78.82 ± 29.62

0.128

0.880

Inspiratory parameters of flow volume curve

FIV1, L

3.27 ± 1.01

3.24 ± 0.98

3.35 ± 1.07

0.414

0.661

FIV1/FVC

90.74 ± 13.45

91.86 ± 11.15

91.87 ± 11.08

0.103

0.902

PIF, L/s

4.87 ± 1.87

4.41 ± 1.53

4.49 ± 1.74

0.619

0.539

PEF/PIF, %

0.67 (0.54 - 1.13)

0.76 (0.44 - 0.99)

0.85 (0.58 - 1.14)

4.650

0.098

FIF75, L/s

3.81 ± 1.71

3.46 ± 1.46

3.57 ± 1.53

0.537

0.585

FIF50, L/s

4.50 ± 1.87

4.13 ± 1.55

4.19 ± 1.69

0.437

0.647

FIF25, L/s

4.30 ± 1.79

3.93 ± 1.42

4.02 ± 1.59

0.492

0.612

FEF50/FIF50, %

0.80 ± 0.48

0.80 ± 0.61

0.90 ± 0.49

1.261

0.285

In Area, L²/s

13.95 ± 7.68

12.89 ± 7.62

13.70 ± 8.28

0.391

0.677

Ex Area/In Area, %

1.07 ± 0.45

1.18 ± 0.56

1.19 ± 0.45

0.658

0.519

Pulmonary diffusion function

DLCO, mmol/min/kPa

7.13 ± 2.04

7.45 ± 2.08

7.74 ± 1.85

1.125

0.326

DLCO% predicted

74.33 ± 14.25

76.27 ± 16.70

80.85 ± 13.86

1.544

0.216