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Table 1 Demographic characteristics of the subjects

From: The cullin4A is up-regulated in chronic obstructive pulmonary disease patient and contributes to epithelial-mesenchymal transition in small airway epithelium

 

Control never-smoker (CNS)

n = 23

Control ex-smoker (CES)

n = 15

COPD

n = 17

Sex (female/male)

16/7

2/13

1/16

Age (years)

52 ± 5

55 ± 9

62 ± 6

Smoking history, pack-years

–

19 ± 13

35 ± 17

FEV1, % predicted

93 ± 10

96 ± 12

68 ± 17

FEV1/FVC %

87 ± 3

82 ± 8

59 ± 6

GOLD stage

 1

–

–

2

 2

–

–

10

 3

–

–

5

 4

–

–

–

  1. Values are given as mean ± SD
  2. Pack-year = one-year smoking 20 cigarettes per day
  3. COPD chronic obstructive pulmonary disease, FEV1 forced expiratory volume in 1 s, FVC forced vital capacity
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Respiratory Research

ISSN: 1465-993X

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