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Table 1 Patient characteristics

From: Obstructive sleep apnoea: a cause of chronic cough

 

Patient 1

Patient 2

Patient 3

Patient 4

Age (years)

52

73

46

63

Gender (m/f)

M

F

F

M

Snoring

Yes

Yes

Yes

Yes

Nocturnal cough

Yes

Yes

Yes

Yes

Body mass Index (Kg/m 2 )

35

32

37

33

Baseline cough VAS

90

95

50

80

Post CPAP cough VAS

0

5

0

0

Cough duration at OSA diagnosis (mo)

48

6

16

8

FEV 1 (%predicted)

93

61

119

100

FEV 1 /FVC (%)

78

70

84

83

PC 20 mg/ml)

>16

nd

>16

>16

Sputum neutrophil (nr <65%)

89

-

91

87

Sputum eosinophil (nr <2%)

0.3

-

1.4

0.5

ESS preCPAP

7

14

15

15

ESS post CPAP

3

8

7

5

AHI baseline (per hour)

36

86

62

10 (4% SpO2 dips)

SpO 2 (4% dips/hour) on CPAP

0.7

0

3

0

CPAP (cm H 2 o)

12

12

8

6

CPAP compliance (mean hours/night)

6

4

7

6

  1. NR: normal range; VAS: visual analogue score (0–100 mm worst); CPAP: continuous positive airway pressure; OSA: obstructive sleep apnoea; FEV1: forced expiratory volume; FVC: forced vital capacity; PC20: provocative concentration of methacholine causing >20% decline in FEV1; ESS: daytime Epworth Sleepiness Scale (range 0–24, nr<11); AHI: apnoea hypopnoea index (nr< 5/hour); SpO2: oxygen saturation