Asthma

Morbidity

• Number of adults aged 18 and over who currently have asthma: 19.9 million
• Percent of adults aged 18 and over who currently have asthma: 8.1%

Source: Summary Health Statistics Tables for U.S. Adults: National Health Interview Survey, 2017, tables A-2b, A-2c [PDF – 166 KB]

• Number of children under age 18 years who currently have asthma: 6.2 million
• Percent of children under age 18 years who currently have asthma: 8.4%

Source: Summary Health Statistics Tables for U.S. Children: National Health Interview Survey, 2017, tables C-1b, C-1c [PDF – 99.8 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: 3,518
• Deaths per 100,000 population: 1.1

Source: Deaths: Final Data for 2016, Supplemental Tables, tables I-12, I-13 [PDF – 2 MB]