AAN: Stroke Prevalence Stable Overall From 1999 to 2018

TUESDAY, April 25, 2023 (HealthDay News) -- From 1999 to 2018, the prevalence of self-reported stroke overall and by racial and ethnic group and age group remained stable, while an increase was seen among men, according to a study published online April 24 in JAMA Neurology to coincide with the annual meeting of the American Academy of Neurology, held from April 22 to 27 in Boston.

Wells Andres, M.D., from the Perelman School of Medicine at the University of Pennsylvania in Philadelphia, and colleagues estimated trends in stroke prevalence using data from the National Health and Nutrition Examination Surveys. The analysis included data from 2,197 participants from the 1999 to 2018 survey cycles aged 20 years and older who self-reported a history of stroke.

The researchers found that the overall crude and age-standardized prevalence of stroke was 2.84 and 3.10 percent, respectively, from 1999 to 2018, corresponding to 7.3 million affected individuals. From 1999-2002 to 2015-2018, the overall prevalence of stroke was stable. Over time, crude estimates of the number of affected individuals with stroke increased, while age-standardized estimates were stable. Compared with other racial and ethnic groups, the age-standardized prevalence of stroke was higher among non-Hispanic Black individuals; prevalence was similar by sex. Higher prevalence was seen for older versus younger individuals. In each age group and racial and ethnic group, the prevalence of stroke was stable from 1999-2002 to 2015-2018, but increases over time were seen for men (from 2.29 to 2.94 percent, respectively).

"Although the burden of stroke has increased since 1973 to 1991, it has stabilized in recent years," the authors write.

One author disclosed financial ties to the pharmaceutical industry.

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