Age-Specific Characteristics of Inpatients with Severe Asthma Exacerbation

Background: The characteristics of inpatients with severe asthma exacerbation remain unclear. It is considered that the characteristics of inpatients with severe asthma vary depending on age. However, these are rarely investigated. The objective of this study is to investigate the differences in characteristics among different age groups. We considered that it is necessary to understand the characteristics of each age group so that we can establish strategies in preventing severe asthma exacerbation. Methods: All asthma inpatients who were hospitalized between 2004 and 2011 with SpO2