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Table 1 Demographic characteristic of the subjects

From: Human antigen R enhances the epithelial-mesenchymal transition via regulation of ZEB-1 in the human airway epithelium

 

Non-smokers

n = 18

Smokers

n = 20

COPDa

n = 30

Sex (female/male)

13/5

1/19

3/27

Age (years)

52 ± 11

54 ± 10

58 ± 8e

Smoking history, pack-yearsb

–

26 ± 12

42 ± 25e

FEV1c, % predicted

99 ± 12

100 ± 11

66 ± 15e

FEV1/FVCd %

85 ± 7

84 ± 7

57 ± 8e

GOLD stage

   

1

–

–

6

2

–

–

19

3

–

–

5

4

–

–

–

  1. aCOPD, chronic obstructive pulmonary disease. bPack-year, 1 year smoking 20 cigarettes per day. cFEV1, forced expiratory volume in 1 s. dFVC, forced vital capacity. eValues are given as mean ± s.d
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Respiratory Research

ISSN: 1465-993X

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