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Table 3 Characteristics of COPD patients according to GOLD classification of disease severity

From: Association of MMP - 12 polymorphisms with severe and very severe COPD: A case control study of MMPs - 1, 9 and 12in a European population

GOLD Status

II

Moderate

III

Severe

IV

Very Severe

P-value

Male (%)

74.7

67.5

67.2

0.0608

Age (yr)

66.1 ± 8.0

66.7 ± 8.4

64.3 ± 8.1

0.0016

Pack Years

49.2 ± 21.1

48.5 ± 22.3

48.4 ± 26.0

0.9105

Predicted FEV 1 (%)

60.2 ± 5.9

40.0 ± 5.8

23.4 ± 4.3

< 0.0001

FEV 1 /FVC (%)

57.1 ± 7.8

45.9 ± 9.9

36.2 ± 9.4

< 0.0001

N

336

406

235

 
  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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