Table 4. Exacerbation history of asthma phenotype and COPD phenotype groups.
| Asthma predominant ACOS (n=94) | COPD predominant ACOS (n=129) | p-value | |
|---|---|---|---|
| Exacerbations per patient | |||
| Unscheduled clinic visit | 0.002 | ||
| None | 49 (52.1) | 91 (70.5) | |
| 1 | 16 (17.0) | 22 (17.1) | |
| ≥2 | 29 (30.9) | 16 (12.4) | |
| Emergency room visit | 0.197 | ||
| None | 75 (79.8) | 112 (86.8) | |
| ≥1 | 19 (20.2) | 17 (13.2) | |
| Hospital admission | 0.189 | ||
| None | 76 (80.9) | 113 (87.6) | |
| ≥1 | 18 (19.1) | 16 (12.4) | |
| ICU admission | 0.652 | ||
| None | 91 (96.8) | 127 (98.4) | |
| ≥1 | 3 (3.2) | 2 (1.6) | |
| Rate of exacerbation per year | |||
| Unscheduled clinic visit | 1.30±2.21 | 0.53±1.11 | 0.003 |
| Emergency room visit | 0.36±0.85 | 0.16±0.42 | 0.032 |
| Hospitalization | 0.29±0.68 | 0.13±0.36 | 0.046 |
| ICU admission | 0.04±0.25 | 0.02±0.12 | 0.337 |
Values are presented as number (%) or mean±SD.
COPD: chronic obstructive pulmonary disease; ACOS: asthma-COPD overlap syndrome; ICU: intensive care unit.