Table 1.
Patient characteristics
| Patient characteristics | Mean (SE) |
|---|---|
| Total number of patients: female, male | N = 23: 6, 17 |
| Age (years) | 52.5 (2.1) |
| Smoking history | 21 ex-smokers, two never smoked |
| Pack – years | 20.7 (3.1) |
| FEV1 post-BD in L | 1.2 (0.1) |
| FEV1% predicted | 38.4 (3.1) |
| FEV1/VC% | 30 (2.7) |
| KCO (mmol/min/kpa/L) | 0.9 (0.4) |
| KCO (% predicted) | 59.7 (2.9) |
| PD15 baseline (g/L) | 44.55 (3.6) |
Abbreviations: BD, bronchodilator; FEV1, forced expiratory volume in one second; KCO, corrected gas transfer; VC, vital capacity; PD15, 15th percentile lung density