Table 2.
Comparison between subjects with and without bronchiectasis
| Variables | COPD with bronchiectasis, n=140 | COPD without bronchiectasis, n=1,599 | P-value |
|---|---|---|---|
| Age, years | 68.3±9.1 | 68.6±9.8 | 0.497a |
| Male, n (%) | 102 (72.9) | 1,285 (80.4) | 0.034b |
| BMI, kg/m2 | 23.4±4.0 | 23.4±4.0 | 0.872c |
| Smokers, n (%) | 96 (68.6) | 1,192 (74.5) | 0.099b |
| Smoking history, pack-years | 29.1±29.1 | 31.6±30.2 | 0.369a |
| Blood tests | |||
| ALB, g/L | 36.7±5.5 | 37.7±5.3 | 0.046a |
| ESR, mm/h | 23.1±19.6 | 24.8±23.6 | 0.888a |
| Fib, g/L | 3.7±1.3 | 3.6±2.1 | 0.231a |
| PFT | |||
| FVC, L | 2.2±0.8 | 2.7±0.9 | <0.001a |
| FEV1, L | 1.1±0.5 | 1.5±0.7 | <0.001a |
| FEV1 % predicted | 41.9±17.9 | 53.8±22.0 | <0.001a |
| FEV1/FVC% | 49.5±12.2 | 55.4±12.5 | <0.001a |
| Comorbidity, n (%) | |||
| Tuberculosis | 11 (7.9) | 185 (11.6) | 0.183b |
| Ischemic heart disease | 31 (22.1) | 390 (24.4) | 0.552b |
| Pulmonary | 9 (6.4) | 38 (2.4) | 0.005b |
| hypertension | |||
| Hypertension | 38 (27.1) | 499 (31.2) | 0.318b |
| Cor pulmonale | 33 (23.6) | 257 (16.1) | 0.022b |
| Diabetes mellitus | 18 (12.9) | 147 (9.2) | 0.156b |
| %LAA-950 | 15.0±12.0 | 13.4±13.4 | 0.011a |
Notes: Data are presented as mean ± SD for continuous variables and percentage for categorical variables.
a
Analysis by Mann–Whitney U-test.
b
Analysis by chi-square test.
c
Analysis by Student’s t-test.
Abbreviations: ALB, albumin; BMI, body mass index; ESR, erythrocyte sedimentation rate; Fib, fibrinogen; %LAA-950, percentage of lung voxels with CT attenuation value below −950 HU; PFT, pulmonary function test.