Asthma
Data are for the U.S.
Morbidity
- Percent of adults aged 18 and over who currently have asthma: 8.4% (2020)
Source: Interactive Summary Health Statistics for Adults: National Health Interview Survey, 2019-2020
- Percent of children under age 18 years who currently have asthma: 5.8% (2020)
Source: Interactive Summary Health Statistics for Children: National Health Interview Survey, 2019-2020
Physician office visits
- Annual number of office visits for asthma: 5.8 million
- Percent of visits to office-based physician with asthma indicated on the medical record: 5.9%
Source: National Ambulatory Medical Care Survey: 2018 National Summary Tables, tables 14, 17 [PDF – 793 KB]
Emergency department visits
- Number of emergency department visits with asthma as a primary diagnosis: 1.6 million
Source: National Hospital Ambulatory Medical Care Survey: 2018 National Summary Tables, table 12
Mortality
- Number of deaths: 4,145
- Deaths per 100,000 population: 1.3
Source: National Vital Statistics System – Mortality Data (2020) via CDC WONDER
Related FastStats
More data
- Trends in Asthma from Health, United States
- Health, United States – Topic Page: Asthma
- Early release of selected estimates from the National Health Interview Survey
- Asthma Surveillance – United States, 2006-2018
Related Links
- Ambulatory Health Care Data
- Mortality Statistics
- National Health Interview Survey
- Centers for Disease Control and Prevention: Asthma
- National Institute for Occupational Safety and Health: Asthma
- National Heart, Lung and Blood Institute: Asthma
- National Institute of Environmental Health Sciences: Asthma
- Environmental Protection Agency: Asthma
Page last reviewed: September 6, 2022
Content source: CDC/National Center for Health Statistics