TABLE 1.
Characteristics of patients at the time of a neutrophilic exacerbation
| Characteristics | Masking effect (n=13) | No masking effect (n=25) | P |
|---|---|---|---|
| Male, n (%) | 4 (30.8) | 14 (56) | NS |
| Age, years, mean ± SD | 60.2±15.3 | 60.5±14.4 | NS |
| Current or former smokers, n (%) | 2 (15.4) | 5 (20) | NS |
| Asthma, n (%) | 10 (76.9) | 5 (20) | |
| Chronic airflow limitation, n (%) | 2 (15.4) | 14 (56) | |
| Bronchiectasis, n (%) | 0 | 1 (4) | |
| Chronic cough, n (%) | 1 (7.7) | 5 (20) | |
| FEV1, L, mean ± SD | 1.9±0.5 | 2.0±1.1 | NS |
| FEV1, % predicted, mean ± SD | 72.0±17.5 | 65.5±22.9 | NS |
| Atopy, % | 61.5 | 41.7 | NS |
FEV1 Forced expiratory volume in 1 s