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Table 1 Demographic data of the study population. Data are given as mean ± SD. AM = alveolar macrophages, Ly = lymphocytes, PMN = polymorphonuclear neutrophils.

From: Toll-like receptor 2 expression is decreased on alveolar macrophages in cigarette smokers and COPD patients

 

COPD (n = 14)

Smoker (n = 10)

Non-smoker

   

old (n = 7)

Young (n = 10)

Age

64.4 ± 9.2

30 ± 4.5

57.8 ± 6

26.8 ± 2.1

GOLD stage

II (n = 9)

III (n = 5)

   

Pack years

43.6 ± 13.8#

16.2 ± 5.2

0

0

Cell concentration BAL × 106/100 ml

22.5 ± 10.8*

29.4 ± 19.0

13.0 ± 3.4

10.7 ± 5.1

Diff. Count BAL × 106/100 ml AM

20.1 ± 9.7*

27.7 ± 18.2

11.1 ± 3.3

9.4 ± 4.8

Ly

1.2 ± 0.41

0.92 ± 0.31

1.6 ± 2.1

0.9 ± 0.29

PMN

0.95 ± 0.5+

0.66 ± 0.2

0.21 ± 0.23

0.21 ± 0.1

Gram stain smear

negative

negative

negative

Negative

  1. #= p < 0.01 vs. smokers, * = p < 0.01 vs. non-smokers, + = p < 0.01 vs. smokers and non-smokers.