Patients n | 460 |
Males/females n | 376/84 |
Age yrs | 75.0±5.9 (65–92) |
FEV1 % pred | 54.7±18.3 |
FEV1/FVC | 0.52±0.11 |
Smoking exposure pack-yrs | 49.4±41.3 |
Sa,O2 % | 94.4±2.8 |
6MWT m | 311.0±129.2 |
BMI kg·m−2 | 27.1±5.3 |
GOLD stage | |
I | 41 (8.9) |
II | 202 (43.9) |
III | 133 (28.9) |
IV | 61 (13.3) |
Data are presented as mean±sd (range), mean±sd or n (%), unless otherwise stated. FEV1: forced expiratory volume in 1 s; % pred: % predicted; FVC: forced vital capacity; Sa,O2: arterial oxygen saturation; 6MWT: 6-min walking test; BMI: body mass index; GOLD: Global Initiative for Chronic Obstructive Lung Disease.