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Stroke Health Center

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Strokes Striking Younger People

Diabetes, Obesity, High Blood Pressure Among Triggers, Expert Says
WebMD Health News
Reviewed by Louise Chang, MD

Oct. 10, 2012 -- People are having strokes at younger ages, according to new research.

"This is still a disease of the old, but a surprisingly higher proportion of younger patients are having strokes, and it's getting worse over time," says researcher Brett Kissela, MD, professor and vice chair of neurology at the University of Cincinnati.

Meanwhile, strokes are decreasing among older people, he found.

In his study, strokes among adults under age 55 grew from about 13% in 1993 to 19% in 2005.

The study, funded by the National Institutes of Health, is published in Neurology.

"Our data cannot tell us why exactly this is happening," he says. "Perhaps the largest factor has to do with the early appearance of risk factors."

He's referring to the rates of diabetes, high blood pressure, and obesity among younger people, all risk factors for strokes.

Better diagnostic methods may also be playing a role, he says.

About 795,000 Americans are affected by stroke annually, according to the American Stroke Association.

Most are ischemic strokes, caused by an obstruction within the blood vessel. Others occur when a blood vessel ruptures, called hemorrhagic strokes.

Strokes in Younger People: The Numbers

For the study, Kissela's team looked at strokes in Cincinnati and Northern Kentucky. The regions included two Ohio counties and three Kentucky counties served by 17 hospitals in 2005.

They only studied first strokes.

  • The average age of first strokes fell from 71 years in 1993-94 to 69 years in 2005.
  • The rates of strokes in people aged 20 to 54 was higher in 2005 compared to the earlier time points.
  • At each of the time points, there were about 2,000 strokes.
  • Looking at just people aged 20-44, the number of strokes bumped up from 88 in 1993-94 to 140 in 2005.
  • The percent of all strokes affecting people 55 and older dropped over time.

Although Kissela's study looked only at one region of the country, a CDC study released in 2011 found the same trends nationwide.

Strokes in Younger People: Beyond Statistics

The impact of a younger person having a stroke is great, Kissela says.

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