Characteristic/pulmonary function response | Emphysema | No emphysema |
Age yrs | 68±2 | 68±2 |
Sex M:F | 11:1 | 11:1 |
Smoking history pack-yrs | 29±6 | 36±7 |
Body mass index | 28±1.4 | 26±0.8 |
Treatment | | |
Inhaled steroids n (%) | 11 (91.6) | 7 (58.3) |
Inhaled bronchodilators n (%) | | |
Short-acting | 9 (75) | 7 (58.3) |
Long-acting | 10 (83.3) | 8 (66.6) |
Theophylline | 4 (33.3) | 0 (0) |
Positive skin-prick test n (%) | 2 (16.6) | 4 (33.3) |
FEV1 % pred pre-bronchodilator | 38±3¶ | 58±3 |
FEV1/FVC % pre-bronchodilator | 40.69±3.3¶ | 54.68±2.3 |
RV % pred | 129±8 | 111±10 |
TLC % pred | 98±4 | 95±4 |
IC % pred | 78.6±4.5¶ | 104.2±4.8 |
FRC % pred | 112±6* | 95±7 |
KCO % pred | 48±8* | 71±7 |
ΔFEV1 post-bronchodilator mL | 120±25 | 141±28 |
ΔFEV1 post-bronchodilator % pred | 4.3±0.9 | 5.4±1.1 |