Clinical Characteristics of Severe Childhood Asthma

Asthma remains a serious health problem with increasing prevalence and incidence. There is limited information about severe asthma among Chinese pediatric patients. In this context, we decided to explore the clinical characteristics and risk factors of severe asthma in children. This is a descriptive, observational, retrospective cohort study in children with asthma. The purpose of this retrospective study is: to determine the clinical characteristics of severe asthma of children; to identify the factors associated with severe childhood asthma.