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Table 1 Demographics of study participants

From: Smoking reduces surfactant protein D and phospholipids in patients with and without chronic obstructive pulmonary disease

 

Never Smoker (N = 65)

Smokers (N = 45)

  

Control (N = 23)

COPD (N = 22)

Age

28 ± 8

53 ± 5

64 ± 9

Sex (m/f)

36/29

18/5

14/8

Current Smokers

0%

78%

41%

Pack Years

0

36 ± 14

60 ± 29

FEV1 post bronchodilator (l)

4.2 ± 0.9

3.2 ± 0.7

1.7 ± 0.7

FEV1 (% predicted)

103% ± 11%

95% ± 13%

56% ± 21%

FEV1/FVC

0.85 ± 0.06

0.79 ± 0.05

0.53 ± 0.12

  1. Shown are means ± standard deviations; P values in text
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BMC Pulmonary Medicine

ISSN: 1471-2466

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