Table 1 Subject characteristics
From: Data reduction for cough studies using distribution of audio frequency content
| Â | Whole Group | Healthy/Healthy Smoker | Asthma | Chronic Cough | COPD |
|---|---|---|---|---|---|
N (female) | 20 (10) | 5 (3) | 5 (3) | 5 (3) | 5(1) |
Age (SD) | 57.4 yrs (±10.9) | 54.0 yrs (±10.5) | 57.4 yrs (±4.4) | 50.4 yrs (±14.4) | 67.6 yrs (±4.0) |
Current Smokers | 3 | 3 | 0 | 0 | 0 |
Smoking Historypack yearsmedian (range) | 3.5 (0-40) | 7.5 (0-29) | 0 (0-5) | 0 (0-2) | 30 (28-40) |
FEV 1 % predicted (SD) | 86.1% (±27.3) | 98.7% (±9.6) | 102.2% (±11.8) | 99.5% (±12.3) | 44.1% (±14.0) |
FEV1/FVC % ratio (SD) | 66.3% (±15.6) | 70.8% (±7.0) | 73.6% (±4.5) | 76.4% (±4.7) | 44.4% (±15.5) |