Table 2.
Prevalence of airway disease and allergic predisposition in patients with idiopathic pulmonary fibrosis
| Variable | No. (%) |
|---|---|
| Prevalence of airway disease | |
| COPD | 3 (5.0) |
| Asthma | 1 (1.7) |
| ACO | 2 (3.3) |
| EB | 1 (1.7) |
| Allergic predisposition | |
| Induced sputum eosinophilia | 14 (23.3) |
| FENO, high | 5 (8.3) |
| Increasing IgE | 19 (31.7) |
| Blood eosinophilia | 6 (10.0) |
| MAST, above class 3 | 7 (11.7) |
The patients who completed all tests was defined as the total number of subjects (n = 60).
COPD, chronic obstructive pulmonary disease; ACO, asthma-COPD overlap; EB, eosinophilic bronchitis; FENO, fractional exhaled nitric oxide; IgE, immunoglobulin E; MAST, multiple antigen simultaneous test.