HNS | Smokers | COPD | P Value | |
---|---|---|---|---|
Number | 6 | 6 | 10 | |
Volume instilled, ml | 280 (116) | 316 (112) | 334 (115) | 0.25 |
Volume recovered, ml | 174 (73) | 166 (35) | 133 (76) | 0.45 |
Recovery, % | 62.3 (6.7) | 54.8 (9.3) | 33.4 (13.2) | 0.0002 |
Total alveolar macrophage count, 106 cells · ml−1 | 0.12 (0.05) | 0.26 (0.17) | 0.37 (0.25) | 0.096 |
Macrophages, %a | 91.4 (81.3–97.0) | 93.1 (88.0–99.5) | 92.4 (80.8–98.3) | 0.816 |
Neutrophils, %a | 0.75 (0–3.5) | 0.875 (0–1.5) | 2.75 (0.75–12.8) | 0.016 |
Lymphocytes, %a | 8.34 (1.25–14.8) | 5.88 (0.5–12.0) | 3.63 (0.25–10.3) | 0.70 |
Eosinophils, %a | 0 (0–1) | 0 (0–0.75) | 0.375 (0–2.5) | 0.16 |
a Of total nonsquamous cells.