Table 1.
Characteristics of COPD patients
| Variables | n=1,739 |
|---|---|
| Age, years | 68.57±9.76 |
| Sex, male/female, % | 79.8/20.2 |
| BMI, kg/m2 | 23.42±3.97 |
| Smokers, n, % | 1,288, 74.1 |
| Smoking history, pack-years | 31.43±30.13 |
| PFT | |
| FVC, L | 2.63±0.93 |
| FEV1, L | 1.49±0.72 |
| FEV1 % predicted, % | 52.80±21.93 |
| FEV1/FVC%, % | 54.94±12.61 |
| GOLD I/II/III/IV, % | 12.8/38.1/31.7/17.4 |
| %LAA-950, % | 13.58±13.26 |
| Comorbidity, n (%) | |
| Tuberculosis | 196 (11.3) |
| Ischemic heart disease | 421 (24.2) |
| Pulmonary hypertension | 47 (2.7) |
| Cor pulmonale | 290 (16.7) |
| Hypertension | 537 (30.9) |
| Diabetes mellitus | 165 (9.5) |
| Arrhythmia | 169 (9.7) |
| Cancer | 711 (40.9) |
| Bronchiectasis | 140 (8.1) |
Note: Data are presented as mean ± SD or number (%).
Abbreviations: BMI, body mass index; GOLD, global initiative for chronic obstructive lung disease; %LAA-950, percentage of lung voxels with CT attenuation value below −950 HU; PFT, pulmonary function test.