Table 2.
Characteristic
|
Value
|
---|---|
Obese a | 52% |
Current smoker | 25% |
Ever smoked | 46% |
Age at diagnosis, years (mean±SD) | 20±18 |
Duration of asthma, years (mean±SD) | 24±16 |
Ever hospitalized for asthma | 67% |
Asthma medications | |
No medications | 6% |
Only inhaled beta agonists | 25% |
Any maintenance medication b | 69% |
Ever took oral corticosteroids for asthma | 86% |
Frequency of flares | |
Once every few months/once a month | 70% |
A few times a month/every week | 18% |
Several times a week/every day | 12% |
Seasonal exacerbation of symptoms | |
Spring | 9% |
Summer | 17% |
Autumn | 6% |
Winter | 43% |
Change in season | 30% |
No, the same throughout the year | 30% |
Asthma knowledge, score (mean±SD) c | 58±20 |
Asthma severity, score (mean±SD) d | 12±4 |
Asthma quality of life, score (mean±SD) e | 3.5±1.0 |
body mass index ≥30 kilograms/meter2
includes long-acting beta agonists, inhaled corticosteroids, leukotriene modifiers, mast cell stabilizers, theophylline, oral corticosteroids
Asthma Self-Management Questionnaire, range 0–100, higher is more knowledge, n=291
Severity of Asthma scale, range 0–28, higher is more severe
Asthma Quality of Life Questionnaire, range 1–7, higher is better status