Skip to main content

Table 1 Demographic data for patients with COPD and healthy controls shown as mean (SD) or %

From: Exhaled volatile organic compounds for phenotyping chronic obstructive pulmonary disease: a cross-sectional study

 

COPD (n = 39)

Healthy (n = 32)

Age, yrs

65.7 (6.8)

55.3 (7.1) *

Gender (% male)

67

47

Smoking status (%):

Current

31

31

 

Ex

69

0

 

Never

0

69

 

Pack years

45.6 (18.9)

37.3 (19.1)

FEV1, l

1.48 (0.5)

3.26 (0.8) *

FEV1,% predicted

54.6 (15.4)

102.4 (12.1) *

FVC, l

3.12 (0.8)

4.20 (0.9) *

FVC,% predicted

89.7 (17.6)

113.3 (14.6) *

FEV1 / FVC

49.2 (13.1)

77.5 (6.6) *

BMI, kg / m2

27.8 (5.6)

27.4 (3.6)

GOLD class I/II/III/IV (%)

2/19/16/2

NA

Inhaled corticosteroids (%)

64

NA

Dose, μg BDP equivalent

842 (978)

NA

Long acting β2-agonists (%)

56

NA

Long acting antimuscarinics (%)

56

NA

  1. * p < 0.05 for COPD versus healthy controls.
  2. GOLD = Global Initiative for Chronic Obstructive Lung Disease [1]; BDP = beclomethasone dipropionate.