| 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) | Â | Â | Â |
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 |