| Never smokers (NS) n = 21 | Smokers (S) n = 16 | COPD n = 33 | p | COPD ex-smokers n = 19 | COPD smokers n = 14 | p |
---|---|---|---|---|---|---|---|
Total leukocytes | 19 (13-27) | 40 (31-50) | 25 (17-30) | P < 0.001 NS vs S P = 0.03 S vs COPD | 18 (15-26) | 29 (25-45) | P = 0.02 COPD ex-svs COPD s |
Macrophages | 16 (11-22) | 37 (29-47) | 22 (14-28) | P < 0.001 NS vs SP = 0.02 S vs COPD | 15 (11-21) | 27 (24-40) | P < 0.001 COPD ex-svs COPD s |
Neutrophils | 0.17 (0.08-0.29) | 0.47 (0.24-0.98) | 0.26 (0.06-0.5) | P = 0.007 NS vs S | 0.28 (0.07-0.6) | 0.19 (0.06-0.5) | NS |
Lymphocytes | 1.7 (0.9-2.7) | 2.3 (1.4-3.6) | 1.4 (0.90-3.0) | NS | 2.0 (1.1-3.3) | 1.3 (0.58-1.9) | NS |
Eosinophils | 0.06 (0-0.16) | 0.05 (0-0.23) | 0.12 (0.03-0.46) | NS | 0.05 (0.01-0.35) | 0.21 (0.05-0.62) | NS |
Mast cells | 0.01 (0.0-0.03) | 0.03(0.005-0.04) | 0.0 (0.0-0.01) | P = 0.003 S vs COPD | 0.005 (0.00-0.01) | 0.0 (0.0-0.008) | NS |