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Table 2 Characteristics of COPD patients according to GOLD classification of disease severity

From: The role of IREB2 and transforming growth factor beta-1 genetic variants in COPD: a replication case-control study

GOLD Status

Moderate II

Severe III

Very Severe IV

P-value

Male (%)

74.9

67.1

67.6

0.0461

Age (yr)

66.0 ± 7.9

66.6 ± 8.4

64.3 ± 8.0

0.0021

Pack Years

49.5 ± 21.3

48.4 ± 22.4

48.6 ± 26.0

0.8043

Predicted FEV 1 (%)

60.3 ± 5.9

39.9 ± 5.8

23.5 ± 4.3

<0.0001

FEV 1 /FVC (%)

57.1 ± 7.8

45.9 ± 9.9

36.2 ± 9.4

<0.0001

N

350

414

238

 
  1. Values indicated are means ± SD. Pack years missing for 3, 2, 1 persons per classification respectively.
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BMC Medical Genetics

ISSN: 1471-2350

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