Table 1.
Clinical characteristics of patients with COPD, ACOS, and asthma FL+
| COPD (n=118) | ACOS (n=32) | Asthma FL+ (n=27) | |
|---|---|---|---|
| Age, years | 71.9±0.8 | 69.1±1.2 | 70.3±2.2 |
| Sex | |||
| Male, n (%) | 96 (88.9) | 30 (93.8) | 11 (40.7)*,** |
| Female, n (%) | 12 (11.1) | 2 (6.3) | 16 (59.3)*,** |
| Body mass index, kg/m2 | 22.4±0.3 | 23.1±0.6 | 22.4±0.4 |
| Brinkman index, pack-years | 51.88±2.88 | 47.47±6.02 | 2.39±1.11*,** |
| Peripheral eosinophil count, % | 2.77±0.20 | 3.66±0.52 | 3.82±0.69 |
| Peripheral eosinophil count, mm3 | 168.12±11.53 | 232.96±40.04 | 227.71±46.24 |
| Chest HRCT findings | |||
| LAA score | 9.52±0.76 | 5.09±1.16* | 0.00±0.00*,** |
| Bronchial wall thickening, n (%) | 27 (25.0) | 12 (37.5) | 15 (55.6)* |
Notes: Values are mean ± standard error of the mean.
*
P<0.01 vs COPD.
**
P<0.01 vs ACOS.
Abbreviations: COPD, chronic obstructive pulmonary disease; ACOS, asthma-COPD overlap syndrome; asthma FL+, asthma with airflow limitation; HRCT, high-resolution computed tomography; LAA, low attenuation area.