Characteristics of the subjects contributing to sputum immunohistochemistry
| COPD (n=6) | NS (n=6) | |
| Male/Female | 5/1 | 3/3 |
| Age (yrs) | 65 (8) | 39 (6) |
| Smoking status (current/ex) | 3/3 | N/A |
| Smoking history pack yrs | 47 (11) | 0 |
| ICS user | 3 | 0 |
| FEV1 % predicted | 62 (16) | 117 (11) |
| FVC (Litres) | 3.5 (0.9) | 4.8 (1.3) |
| FEV1/FVC % | 53 (14) | 80 (8) |
| Total Cell Count (x106) | 8.9 (9.9) | 1.7 (2.04) |
| % Neutrophils | 76 (6) | 29 (10) |
| % Macrophages | 22 (6) | 65 ((12) |
| % Eosinophils | 1 (1) | 1 (2) |
| % Lymphocytes | 0.3 (0.3) | 2 (1) |
| % Epithelial cells | 0.4 (0.3) | 3.4 (1.9) |
Data are expressed as mean (SD).
NS, Non-smoker with normal lung function; N/A, not applicable.