Epidemiology of Asthma Overview

  • The direct and indirect costs of asthma amount to > $56 billion dollars per year2
  • 4 million adults aged ≥18 years are currently diagnosed with asthma
  • According to the CDC, 1 in 13 people have asthma
  • An estimated 65% of adults with asthma have persistent asthma while 35% have intermittent asthma
  • Asthma affects 25.7 million people. Of those, 7.0 million are children <18 years of age
  • In 2010, 1.8 million people presented to the emergency department due to asthma related care
  • In 2010, 439,000 people were hospitalized due to asthma2
  • Regarding ethnicity, the prevalence of asthma is higher in the African American population when compared to the Caucasian population1,2
  • Current data reveals the inverse relationship between prevalence of asthma and annual household income1,2
  • Asthma by the numbers2:
    • 439,000 discharge chart notes are related to asthma per year
    • 2 million physician office visits are due to asthma per year
    • 1.8 million emergency department visits are a result of asthma per year



  1. Centers for Disease Control and Prevention. Asthma. Available: https://www.cdc.gov/asthma/default.htm Updated: April 2018 Accessed: Sept 2018
  2. United States Environmental Protection Agency. Asthma Facts. Available: https://www.epa.gov/sites/production/files/2016-05/documents/asthma_fact_sheet_english_05_2016.pdf