Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Patient characteristics.
| Airway obstruction |
No airway obstruction | |||
|---|---|---|---|---|
| Characteristic | Mild (n=12) | Moderate (n=14) | Severe (n=1) | (n=28) |
| Age (y) | 47 ± 20 | 57 ± 17 | 73 | 47 ± 20 |
| Cause of obstruction | ||||
| Asthma (n=20) | 4 | 6 | 0 | 10 |
| COPD (n=8) | 0 | 7 | 1 | 0 |
| Spirometry | ||||
| FEV1% | 94 ± 8 | 63 ± 9 | 35 | 97± 13 |
| FEV1/FVC | 0.66 ± 0.03 | 0.59 ± 0.09 | 0.39 | 0.76± 0.05 |
Values are expressed as mean ± one standard deviation
