|
Differential cell counts in IS and BAL samples |
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| Variable |
COPD smokers |
COPD ex-smokers |
'Healthy' smokers |
Healthy never-smokers |
CS/CE |
CS/HS |
CS/HN |
CE/HS |
CE/HN |
HS/HN |
|
|
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| Induced sputum |
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|
|
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| Neutrophils |
67.7 ± 7.7 |
75.9 ± 9.5 |
22.6 ± 3.3 |
16.1 ± 7.0 |
>0.05 |
<0.05 |
<0.01 |
0.05 |
0.01 |
>0.05 |
| Eosinophils |
4.5 ± 2.2 |
3.4 ± 1.6 |
1.8 ± 0.4 |
2.3 ± 0.5 |
>0.05 |
>0.05 |
>0.05 |
>0.05 |
>0.05 |
>0.05 |
| Lymphocytes |
4.7 ± 1.6 |
2.7 ± 0.9 |
6.3 ± 1.1 |
4.9 ± 0.8 |
>0.05 |
>0.05 |
>0.05 |
>0.05 |
>0.05 |
>0.05 |
| Macrophages |
23.1 ± 7.5 |
18.0 ± 3.5 |
69.3 ± 9.5 |
64.8 ± 10.2 |
>0.05 |
<0.05 |
<0.05 |
0.05 |
<0.05 |
>0.05 |
|
|
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| BAL |
||||||||||
|
|
||||||||||
| Recovery of BAL fluid |
43.1 ± 8.3 |
59.3 ± 6.7 |
83.3 ± 6.9 |
81.0 ± 3.8 |
<0.05 |
<0.05 |
<0.05 |
<0.05 |
<0.05 |
>0.05 |
| Neutrophils |
17.4 ± 4.8 |
3.2 ± 1.5 |
2.7 ± 0.4 |
1.2 ± 0.5 |
<0.01 |
0.05 |
<0.01 |
>0.05 |
0.01 |
<0.01 |
| Eosinophils |
0.8 ± 0.3 |
0.8 ± 0.3 |
0.2 ± 0.1 |
0.2 ± 0.1 |
>0.05 |
>0.05 |
>0.05 |
>0.05 |
<0.05 |
>0.05 |
| Lymphocytes |
22.6 ± 6.5 |
19.8 ± 3.9 |
24.2 ± 4.5 |
21.0 ± 4.4 |
>0.05 |
>0.05 |
>0.05 |
>0.05 |
>0.05 |
>0.05 |
| Macrophages |
59.2 ± 6.9 |
76.2 ± 9.3 |
72.9 ± 10.6 |
77.6 ± 10.6 |
<0.01 |
>0.05 |
<0.05 |
>0.05 |
>0.05 |
>0.05 |
|
Values are mean percentage of total cells ± SEM. CS: COPD smokers; CE: COPD ex-smokers; HS: 'healthy' smokers; HN: healthy never-smokers. | ||||||||||
Babusyte et al. Respiratory Research 2007 8:81 doi:10.1186/1465-9921-8-81 |
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