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Table 3 Baseline characteristics of the study subjects

From: Mechanical induction of cough in Idiopathic Pulmonary Fibrosis

 

Control subjects

IPF subjects

 
 

n = 30

n = 27

p Value

Age, years

65.6 (5.3)

71.7 (7)

<0.001

Sex, male : female

21 : 9

17 : 10

0.589

Body Mass Index, kg/m2

26.3 ± 3.5

29.3 ± 4.6

0.007

Ever smoking: (% with ≥1 pack-year)

37

59

0.114

FEV1, % predicted

108.2 (10.9)

79.1 (18.5)

<0.001

FVC, % predicted

120.6 (13.7)

80.4 (20.9)

<0.001

DLCO ,% predicted

86.5 (11.9)

43.7 (12)

<0.001

TLC, % predicted

ND

61.9 (12)

 

LDQ score, median (IQR)

0 (0-2)

2 (0-4)

0.06

Corticosteroid use, n (%)

0 (0)

9 (30)

<0.001

  1. Data are presented as mean (SD) unless indicated otherwise
  2. Definition of abbreviations: IPF = idiopathic pulmonary fibrosis; FEV1 = forced expiratory volume in 1 s; FVC = forced vital capacity; DLCO = lung diffusion capacity for carbon monoxide; TLC = total lung capacity; ND = not determined; VAS = visual analogue scale; IQR = interquartile range; LDQ = Leeds dyspepsia questionnaire.