Table 1 Characteristics of the 137 adults with asthma
From: Estimation of the effects of heavy Asian dust on respiratory function by definition type
| Male/female | 58 (42.3)/79 (57.3) |
|---|---|
| Age (years) | 63.5 ± 15.4 |
| Never smoked | 92 (67.1) |
| Former smoker | 38 (27.7) |
| Current smoker | 7 (5.2) |
| Respiratory function | |
| FVC (L) | 2.94 ± 0.70 |
| FEV1 (L) | 2.09 ± 0.60 |
| %FEV1 (%) | 100.4 ± 24.7 |
| Atopic disposition | 74 (54.0) |
| Allergic rhinitis and/or chronic sinusitis | 60 (43.8) |
| Treatment step | |
| Step 1 | 1 (0.7) |
| Step 2 | 14 (10.2) |
| Step 3 | 29 (21.2) |
| Step 4 | 87 (63.5) |
| Step 5 | 6 (4.4) |