In 2021, around 40 percent of adults in the United States with asthma had one or more asthma attacks in the past 12 months. This statistic shows the percentage of adults in the U.S. with asthma who had one or more asthma attacks in the past year from 2001 to 2021.
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CDC. (January 4, 2023). Percentage of adults in the U.S. with asthma who had one or more asthma attacks in the past 12 months from 2001 to 2021 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 15, 2026, from /statistics/1111591/adults-with-asthma-attacks-past-year-us/
CDC. "Percentage of adults in the U.S. with asthma who had one or more asthma attacks in the past 12 months from 2001 to 2021." Chart. January 4, 2023. ÌÇÐÄÆƽâ°æ. Accessed July 15, 2026. /statistics/1111591/adults-with-asthma-attacks-past-year-us/
CDC. (2023). Percentage of adults in the U.S. with asthma who had one or more asthma attacks in the past 12 months from 2001 to 2021. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 15, 2026. /statistics/1111591/adults-with-asthma-attacks-past-year-us/
CDC. "Percentage of Adults in The U.S. with Asthma Who Had One or More Asthma Attacks in The past 12 Months from 2001 to 2021." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 4 Jan 2023, /statistics/1111591/adults-with-asthma-attacks-past-year-us/
CDC, Percentage of adults in the U.S. with asthma who had one or more asthma attacks in the past 12 months from 2001 to 2021 ÌÇÐÄÆƽâ°æ, /statistics/1111591/adults-with-asthma-attacks-past-year-us/ (last visited July 15, 2026)
Percentage of adults in the U.S. with asthma who had one or more asthma attacks in the past 12 months from 2001 to 2021 [Graph], CDC, January 4, 2023. [Online]. Available: /statistics/1111591/adults-with-asthma-attacks-past-year-us/
