In a new study presented at the American Stroke Association’s International Stroke Conference 2022, researchers found that while fewer people older than age 75 are having strokes, the incidence of stroke among adults ages 49 and younger in the U.S. has continued to increase over the last 30 years, particularly among people living in the South and Midwest regions.
According to the American Heart Association, stroke accounted for about 1 of every 19 deaths in the U.S. in 2018.
On average, someone died of a stroke every 3 minutes 33 seconds in 2016.
When considered separately from other cardiovascular diseases, stroke ranks No. 5 among all causes of death in the U.S. and resulted in 147,810 deaths in 2018.
Stroke is becoming a big threat and burden for people and the health system in the U.S.
In the current study, the team examined the U.S. stroke data from 1990 to 2019 in the study of Global Burden of Disease (GBD) 2019.
The GBD study tracks trends for diseases and causes of death by age, sex, and country.
Researchers found that:
Overall, in 2019 in the U.S., there were an estimated 460,000 strokes (of those, two-thirds were ischemic), 190,000 stroke-related deaths, and 3.83 million stroke disability-adjusted life years.
From 1990 to 2019, the change in the prevalence of stroke in the general population increased by about 60%. Incidence, death and disability-adjusted life years also increased by about 20%.
However, the age-standardized rates of stroke incidence, death and disability-adjusted life years declined by 20% to-30% in that same period, and the prevalence of stroke did not change. These decreases have plateaued in the last 10 years of the study period.
Since 1990, stroke incidence among older adults (age 50 and older) decreased nationwide, yet increased in younger adults (ages 15 to 49) in some geographic areas, including certain states in the South (Alabama, Arkansas) and the Midwest (Minnesota, North Dakota).
The findings suggest that public health interventions should be considered for younger populations particularly in the regions where stroke incidence is increasing,
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The study was conducted by Audrey C. Leasure et al.
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