Asthma

Morbidity

• Number of adults aged 18 and over who currently have asthma: 20.4 million
• Percent of adults aged 18 and over who currently have asthma: 8.3%

Source: Summary Health Statistics Tables for U.S. Adults: National Health Interview Survey, 2016, table A-2 [PDF – 168 KB]

• Number of children under age 18 years who currently have asthma: 6.1 million
• Percent of children under age 18 years who currently have asthma: 8.3%

Source: Summary Health Statistics Tables for U.S. Children: National Health Interview Survey, 2016, table C-1 [PDF – 139 KB]

Physician office visits

• Percent of visits to office-based physician with asthma indicated on the medical record: 6.2%

Source: National Ambulatory Medical Care Survey: 2015 State and National Summary Tables, tables 19 [PDF – 697 MB]

Emergency department visits

• Number of visits to emergency departments with asthma as the primary diagnosis: 1.7 million

Source: National Hospital Ambulatory Medical Care Survey: 2015 Emergency Department Summary Tables, table 12 [PDF – 676 KB]

Mortality

• Number of deaths: 3,615
• Deaths per 100,000 population: 1.1

Source: Deaths: Final Data for 2015, Supplemental Tables, tables I-24, I-25 [PDF – 2.7 MB]