Health status variables among 189 adults with asthma
| Health status variables | Frequency |
|---|---|
| FEV1, forced expiratory volume in 1 s. | |
| FEV1% predicted, mean (SD) | 83.1 (18.4) |
| Global Initiative for Asthma (GINA) Severity | |
| Step 1 (intermittent), n (%) | 49 (26) |
| Step 2 (mild persistent), n (%) | 26 (14) |
| Step 3 (moderate persistent), n (%) | 55 (29) |
| Step 4 (severe persistent), n (%) | 59 (31) |
| Asthma Severity Score, mean (SD) | 7.8 (5.2) |
| SF-12 Physical Component Score, mean (SD) | 44.7 (11.1) |
| SF-12 Mental Component Score, mean (SD) | 46.8 (7.7) |
| Quality of life (total score), mean (SD) | 16.1 (15.2) |
| Quality of life subscales | |
| Physical impact, mean (SD) | 4.6 (4.5) |
| Emotional impact, mean (SD) | 4.2 (4.2) |
| Social impact, mean (SD) | 4.3 (5.8) |
| Health concerns, mean (SD) | 2.9 (2.7) |