The goal of this observational study is to determine the prevalence of remission among adults with mild-to-moderate asthma, as well as the factors associated with remission in Thailand. The main question the study aims to answer is: What is the prevalence of remission among adults with severe asthma in Thailand? Participants will complete a questionnaire on asthma symptoms and undergo pulmonary function testing and a blood test once.
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Prevalence rate of mild-to-moderate asthma remission
Timeframe: An average of 1 year