Type A Blood May Increase Risk of Early Stroke, Study Finds

According to a study published in 2022, people with type A blood may be more likely to experience a stroke before the age of 60 compared to those with other blood types. The research analyzed data from 48 genetic studies, comprising approximately 17,000 stroke patients and 600,000 non-stroke controls between the ages of 18 and 59. The results showed that individuals with a variation of the A blood group had a 16% higher risk of stroke before the age of 60, while those with the O1 variation had a 12% lower risk. However, it’s important to note that the increased risk for those with type A blood is relatively small and does not necessitate additional vigilance or screening. It’s also worth considering that the majority of strokes, approximately 75%, occur in people over the age of 65, and that the study’s participants were largely from North America, Europe, Japan, Pakistan, and Australia, with only 35% being of non-European ancestry. Further research with a more diverse sample is necessary to fully understand the significance of these findings.

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