In the United States, an estimated that 24.6 million people (8.2%) currently have asthma.1 Students with asthma miss more than 14 million school days every year due to illness. Furthermore, certain U.S. population subgroups have higher prevalence rates of asthma in comparison to the national average: children (9.6%), poor children (13.5%), non-Hispanic black children (17.0%), women (9.7%), and poor adults (10.6%).