Patient and sputum characteristics
| PiZ (n=11) | PiM (n=11) | |
|---|---|---|
| FEV1= forced expiratory volume in one second; VC=vital capacity; M=mucoid; MP=mucopurulent; cfu=colony forming units. | ||
| Data for age, FEV1 (% predicted) and FEV1/VC (%) are mean (SD). | ||
| *p<0.05. | ||
| Age | 47 (8) | 64 (6)* |
| M/F | 8:3 | 6:5 |
| Current (ex) smokers | 3 (8) | 5 (6) |
| Inhaled corticosteroids | 7 | 7 |
| Stable state FEV1 (% predicted) | 28.3 (19.5) | 33.7 (14.4) |
| Stable state FEV1/VC (%) | 30.7 (10.1) | 40.1 (17.0) |
| Macroscopic sputum appearance (M/MP) | 2/9 | 2/9 |
| Sputum bacterial load >107 (cfu/ml) | 4 | 4 |