Which blood group has a greater risk of early stroke – American study reveals

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The relevant publication was made in the journal “Neurology” of the American Academy of Neurology

THE A person’s blood type is associated with a greater or lesser risk of premature stroke before the age of 60, a new American scientific study shows. The team The has the least riskwhile Oh, the older one. This finding may lead to new methods of predicting and preventing strokes in young adults, which are increasingly occurring at these ages.

University of Maryland School of Medicine researchers, led by Profs Braxton Mitchell and Steven Kittnerwho made the relevant publication in the magazine “Neurology” of the American Academy of Neurology, evaluated data from 48 studies involving a total of nearly 17,000 people with ischemic stroke (of which 5,825 were before 60) and 576,353 without stroke.

The study (meta-analysis) shows that people with blood type A have a 16% higher risk of early stroke before the age of 60, while those with type O have a 12% lower risk of early stroke, compared to other blood types.

Non-O blood types have previously been linked to a risk of premature stroke. Our meta-analysis findings show a stronger association between these blood types and early stroke than stroke after age 60, and the risk is mostly for blood type AMitchell said.

The researchers found that people who had a stroke before the age of 60 were more likely to have type A blood and less likely to have type O, compared to those who had a stroke after 60 and those who had never had a stroke. 48% of people with an early stroke had type A blood compared to 45% of those who had a stroke after age 60 and 44% of those who never had a stroke. Also 35% of people with a stroke before 60 had blood type O compared to 39% of people with a stroke after 60 and 41% of those who never had a stroke.

The researchers stressed that the increased risk for blood group A is very small, and those with this group should not worry that they have a high chance of having an early stroke, nor should they bother to have extra medical tests for no reason.

“We don’t yet know why blood group A has a higher risk, but it probably has to do with blood clotting factors such as platelets and cells on the surface of blood vessels, as well as proteins circulating in the blood that play a role in clot development,” said Dr. Kittner.

Previous studies have shown that people with blood type A have a slightly higher risk of developing blood clots in the legs (deep vein thrombosis).

Link to the scientific publication:

RES-EMP

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