Asthma

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Data are for the U.S.

Morbidity
  • Percent of adults age 18 and older who currently have asthma: 8.9% (2023)

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  • Percent of children younger than age 18 years who currently have asthma: 6.7% (2023)

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Physician office visits
  • Annual number of office visits for asthma: 4.9 million
  • Percent of visits to office-based physician with asthma indicated on the medical record: 6.3%

Source: National Ambulatory Medical Care Survey: 2019 National Summary Tables, tables 14, 16 [PDF – 865 KB]

Emergency department visits
  • Number of emergency department visits with asthma, excluding chronic obstructive asthma, as a primary diagnosis: 939,000

Source: National Hospital Ambulatory Medical Care Survey: 2021 National Summary Tables, table 11 [PDF – 830 KB]

Mortality
  • Number of deaths: 3,602
  • Deaths per 100,000 population: 1.1

Source:

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