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Table 3 SDB groups. All data are presented as Median [Q1;Q3]

From: Treating sleep-disordered breathing of idiopathic pulmonary fibrosis patients with CPAP and nocturnal oxygen treatment. A pilot study

  

OSA (N 1)

   

CSA (N 9)

   

SSH (N 4)

   

No-SDB (N 14)

 
 

Baseline

1-year

p.value

 

Baseline

1-year

p.value

 

Baseline

1-year

p.value

 

Baseline

1-year

p.value

Lung function test

BMI

28.5 [27;33.43]

29.29 [27.42;33.43]

0.464

 

26 [25;30.06]

25.82 [23.5;30.06]

0.250

 

28.5 [26.75;28.4]

26.48 [24.6;28.4]

0.125

 

27 [25.45;28.47]

26.53 [25.6;28.47]

0.391

FVC (mL)

2800 [2370;3167.5]

2780 [2172.5;3167.5]

0.132

 

2790 [2640;3440]

2810 [2480;3440]

0.652

 

2060 [1997.5;2427.5]

2020 [1910;2427.5]

1.000

 

2310 [1907.5;3290]

2360 [1790;3290]

0.432

FVC (%)

92.5 [86.75;113.75]

90 [83.5;113.75]

0.363

 

101 [83;117]

108 [78;117]

0.343

 

72 [62.25;84]

71.5 [61.25;84]

0.250

 

97 [93;105.75]

99 [85.25;105.75]

0.615

FEV1/FVC

81.98 [78.26;84.33]

80.31 [78.1;84.33]

0.632

 

82.62 [74.46;83.9]

78.52 [69.7;83.9]

0.027

 

80.91 [79.05;88.99]

83.21 [79.09;88.99]

1.000

 

82.75 [78.74;88.34]

84.75 [76.95;88.34]

0.903

TLC (mL)

4430 [3960;4640]

4180 [3700;4640]

0.083

 

4790 [4390;5730]

4820 [4150;5730]

0.359

 

3310 [3250;3660]

3470 [3250;3660]

0.773

 

4240 [2930;4730]

4080 [2960;4730]

0.162

TLC (%)

77 [73.5;83]

74 [71;83]

0.123

 

77 [71;91]

86 [67;91]

0.301

 

62 [60;70]

67 [64;70]

1.000

 

80 [71;80]

73 [70;80]

0.233

DLCO (%)

56.5 [53.25;70.25]

56 [49.5;70.25]

0.029

 

51 [46;77]

58 [42;77]

0.552

 

71 [60;65]

57 [49;65]

0.371

 

62.5 [49.5;60.25]

55 [45.75;60.25]

0.012

KCO (%)

82.5 [69.75;103.25]

89 [72;103.25]

0.518

 

81 [65;103]

77 [71;103]

0.905

 

97 [95.5;114.5]

99 [93;114.5]

1.000

 

84 [79.5;86]

79.5 [77.75;86]

0.024

6MWD distance (m)

431.5 [391;492]

437 [377;492]

1.000

 

433 [423;447]

423 [384;447]

0.734

 

374.5 [341;382.5]

329 [293;382.5]

0.789

 

435 [398.25;446.25]

416.5 [355.75;446.25]

0.069

6MWD minimal SpO2%

90.5 [87.75;95]

90.5 [88.75;95]

0.861

 

92 [90;96]

93 [91;96]

0.325

 

90.5 [88;90.5]

90 [90;90.5]

0.875

 

92 [89.75;93.75]

90.5 [87;93.75]

0.423

Blood biological mediators

CRP

7.3 [3.5;10.62]

6.5 [2.2;10.62]

0.045

 

2.2 [1.6;5.7]

1.1 [0.7;5.7]

0.496

 

6.05 [3.47;3]

2.7 [2.22;3]

0.250

 

2.1 [1.35;3.28]

2.1 [1.22;3.28]

0.485

LDH

200.5 [170.25;211.25]

194.5 [169.75;211.25]

0.856

 

203 [190;214]

204 [177;214]

0.129

 

166 [158.5;167]

154 [153;167]

1.000

 

200 [179.75;233.5]

193 [173.5;233.5]

0.576

NT-BNP

83 [25.5;214.5]

187 [169.5;214.5]

0.229

 

214 [135;214]

204 [177;214]

0.734

 

32 [25.5;167]

154 [153;167]

0.250

 

81 [31;236]

198 [175;236]

0.002

IL-6

11.52 [7.18;27.52]

17.62 [11;27.52]

0.029

 

9.85 [8.83;36.74]

12.56 [11.34;36.74]

0.02

 

11.74 [10.45;15.56]

13.87 [11.66;15.56]

0.875

 

8.59 [6.5;17.11]

9.49 [7.22;17.11]

0.042

MMP-1

8.75 [6.12;7.92]

7.02 [5.27;7.92]

0.029

 

10.2 [7.5;9.98]

6.91 [5.01;9.98]

0.027

 

5.6 [5.25;10.11]

7.31 [5.05;10.11]

1.000

 

7.5 [6.12;11.5]

6.98 [4.59;11.5]

0.391

MMP-7

5.54 [4.35;7.37]

5.71 [4.65;7.37]

0.495

 

7.73 [6.74;7.98]

6.83 [5.94;7.98]

0.57

 

6.25 [5.73;8.22]

6.84 [6.18;8.22]

0.875

 

5.4 [5.17;7.28]

5.77 [4.75;7.28]

0.67

MMP-9

240.06 [186.99;591.38]

487.24 [413.61;591.38]

< 0.001

 

348.2 [293.95;776.08]

640.07 [605.72;776.08]

0.004

 

246.55 [206.21;590.34]

411.6 [268.01;590.34]

0.625

 

161.82 [125.18;439.26]

306.89 [228.73;439.26]

< 0.001

FNIII-C

92.93 [73.01;184.53]

151.48 [131.58;184.53]

< 0.001

 

103.67 [85.76;261.14]

193.72 [109.59;261.14]

0.055

 

96.58 [89.8;191.3]

153.66 [131.12;191.3]

0.250

 

97.27 [69.48;194.79]

174.92 [125.97;194.79]

< 0.001

AGEs/RAGEs

15.03 [9.64;20.88]

12.07 [8.92;20.88]

0.86

 

17.63 [15.82;18.54]

10.91 [6.58;18.54]

0.027

 

15.4 [9.87;21.59]

14.39 [8.46;21.59]

0.625

 

18.11 [15.69;16.95]

12.31 [7.33;16.95]

0.02

SP-D

12.67 [7.11;28.13]

18.88 [12.16;28.13]

0.562

 

43.4 [29.16;29.93]

25.97 [15.77;29.93]

0.074

 

25.06 [19.37;17.36]

10.68 [5.68;17.36]

0.250

 

22.34 [12.65;24.21]

20.46 [11.65;24.21]

0.626

KL-6

804.5 [608.5;1242.25]

882 [532.25;1242.25]

0.782

 

856 [512;991]

855 [599;991]

0.213

 

410.5 [388.5;841.75]

433 [390.25;841.75]

0.375

 

797 [629.25;1227.75]

897 [646.25;1227.75]

0.626

Sleep study

SE (%)

71.75 [62.62;80.45]

67.1 [61.7;80.45]

0.453

 

74.1 [55.4;75]

69.8 [51.1;75]

0.91

 

67.8 [56.35;73.22]

65.55 [55.9;73.22]

1

 

78.1 [62.7;86.35]

72.2 [64.6;86.35]

0.577

N1 (% TST)

19.4 [15.2;14.95]

12.95 [8.22;14.95]

0.016

 

13.5 [4.9;22.8]

16.1 [10.8;22.8]

0.359

 

11.3 [8.57;19]

13.5 [9.85;19]

0.375

 

9.3 [6.85;15.8]

14.1 [5.5;15.8]

0.444

N2 (% TST)

39.4 [34.95;45.07]

38.25 [28.9;45.07]

0.669

 

36.9 [27.5;41.1]

31.7 [31.4;41.1]

0.91

 

32.6 [29.42;38]

35.6 [31.83;38]

0.625

 

38.4 [33.95;43.35]

38.7 [35.75;43.35]

0.45

N3 (% TST)

25.9 [16.55;38.03]

28.15 [25.2;38.03]

0.187

 

38.4 [32;31.3]

26.6 [24.1;31.3]

0.074

 

38.7 [32.6;38.05]

30.55 [26.32;38.05]

0.25

 

34.6 [21.4;36.7]

33.6 [23.35;36.7]

0.919

REM (% TST)

14.4 [6.7;21.88]

16.5 [10.47;21.88]

0.495

 

17.6 [9.3;20.3]

20.1 [12.8;20.3]

1

 

20.15 [15.82;18.22]

15.9 [14.3;18.22]

1

 

17.4 [12.05;21.55]

17.4 [12.65;21.55]

0.278

AI (events/h)

3.65 [1.57;0.35]

0 [0;0.35]

< 0.001

 

10.27 [1.19;0.7]

0 [0;0.7]

0.021

 

0 [0;1.35]

0.5 [0;1.35]

0.423

 

0.63 [0;1.05]

0.55 [0;1.05]

0.919

HI (events/h)

20.47 [17.63;8.9]

4.2 [1.53;8.9]

0.002

 

24.46 [19.91;10.1]

9.5 [4.1;10.1]

0.008

 

11.36 [10.01;19.22]

10.25 [3.17;19.22]

0.875

 

6.37 [3.36;11.07]

7.6 [4.62;11.07]

0.091

AHI (events/h)

25.5 [21.23;9.28]

4.2 [1.65;9.28]

< 0.001

 

30.4 [22.8;10.1]

10.1 [4.8;10.1]

0.004

 

11.45 [10.18;20.6]

10.75 [3.17;20.6]

1

 

7.2 [4.9;12.2]

9.5 [5.3;12.2]

0.146

Mean SpO2 (%)

94 [93;96]

95 [93.75;96]

0.008

 

93 [92;97]

95 [94;97]

0.121

 

92.5 [91.75;96.5]

95 [94;96.5]

0.098

 

95 [94;95.75]

94.5 [93.25;95.75]

0.198

Lowest SpO2 (%)

81 [78.75;91]

89 [88;91]

0.015

 

82 [80;89]

86 [85;89]

0.092

 

83.5 [82.75;87.75]

86.5 [86;87.75]

0.125

 

89 [88;88.75]

86 [83.25;88.75]

0.005

ODI (events/h)

19.55 [16.68;10.12]

5 [2.42;10.12]

< 0.001

 

48.3 [23.2;11.5]

7.4 [1.7;11.5]

0.004

 

12.1 [9.58;12.57]

6.4 [0.45;12.57]

0.125

 

4.6 [2.42;9.53]

5.2 [3.62;9.53]

0.124

TST90 (%)

1.9 [1;0.45]

0.1 [0;0.45]

0.012

 

12.4 [4.7;2]

0.1 [0;2]

0.004

 

7.05 [6.33;0.8]

0.4 [0;0.8]

0.125

 

0.1 [0;1.65]

0.1 [0;1.65]

0.148

TST88 (%)

0.6 [0.18;0]

0 [0;0]

0.01

 

3.1 [0.8;0.2]

0 [0;0.2]

0.004

 

1.8 [1.8;0.12]

0.05 [0;0.12]

0.125

 

0 [0;0.2]

0.05 [0;0.2]

0.05

TST88 (minutes)

2.65 [0.75;0.03]

0 [0;0.03]

0.007

 

14.3 [5.2;1]

0.1 [0;1]

0.004

 

8.3 [7.85;0.62]

0.3 [0;0.62]

0.125

 

0 [0;0.95]

0.25 [0;0.95]

0.041

PLM index

2.9 [0;41.88]

8.8 [0;41.88]

0.059

 

0 [0;3.4]

1 [0;3.4]

0.281

 

0 [0;1.35]

0 [0;1.35]

1

 

0.8 [0;14.55]

6.5 [0;14.55]

0.042

  1. All data are presented as Median [Q1; Q3]. OSA: obstructive sleep apnea; CSA: central sleep apnea; SSH: sleep sustained hypoxemia; SBD: sleep-disordered breathing; BMI: body mass index; FVC: forced vital capacity; FEV1: forced expiratory volume in 1 s; TLC: total lung capacity; DLCO: diffusing capacity of the lungs for carbon monoxide; KCO: carbon monoxide transfer coefficient; 6MWT: 6-min walking test; SpO2: arterial oxygen saturation measured by pulse oximetry; CRP: [1]; LDH: lactate dehydrogenase; NT-BNP: N-terminal pro-B-type natriuretic peptide; IL-6: human Interleukin 6; MMP-1: matrix metalloproteinase 1; MMP-7: matrix metalloproteinase 7; MMP-9: matrix metalloproteinase 9; FNIII-C: tenascin-c large ; AGEs: advanced glycation end-products; RAGEs: receptor for advanced glycation end products; SP-D: surfactant protein D; KL-6: Krebs von den Lungen-6; SE: Sleep Efficiency; REM: rapid eye movement; AI: Apnea index; HI: hypopnea index; AHI: apnea–hypopnea index; SpO2: arterial oxygen saturation measured by pulse oximetry; ODI: oxygen desaturation index; TST90: percentage of TST with SpO2 &lt; 90%; TST88: percentage of TST with SpO2 &lt; 88%; PML: Periodic movement legs,