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What percentage of American adults had an asthma attack in the past year?
3.7% of American adults had an asthma attack in the past year — about 4 in every 100, or 0 in 10. That is the figure published by the National Health Interview Survey for 2025.
0 in 100100 in 100
3.7
Where this number comes from
- Survey
- National Health Interview Survey
- What it measured
- Respondents were asked if they had ever been told by a doctor or other health professional that they had asthma. Respondents who had been told they had asthma were asked if they had an episode of asthma or an asthma attack during the past 12 months.
- Population
- U.S. adults aged 18 and over
- Year
- 2025
- 95% confidence interval
- 3.4% to 4%
Work of the U.S. federal government - public domain. See the source data
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