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Hypothesizing that stroke in younger adults may be on the rise, researchers aimed to describe recent age-related temporal trends of stroke incidence. They identified ischemic and hemorrhagic stroke cases retrospectively through inpatient and outpatient records within a well-defined population base in Ohio and Kentucky. The investigators compared the annual incidence rates of stroke among young adults during a 12-year period, using both inpatient records and outpatient sampling to identify strokes.
The proportion of all strokes that occurred in adults aged 20 through 54 increased from 13% in the 1993–1994 period to 19% in 2005. In this age group, the incidence rate of stroke among blacks increased from 83 per 100,000 in 1993–1994 to 128 per 1…