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Benefits of aspirin use to prevent heart attack

For people at low risk of a heart attack or stroke, about 3 out of 100 will have a heart attack or stroke in the next 10 years if they do not take aspirin. About 2 out of 100 will have a heart attack or stroke if they do take aspirin. For people at moderate risk of a heart attack or stroke, about 10 out of 100 will have a heart attack or stroke in the next 10 years if they do not take aspirin. About 8 out of 100 will have a heart attack or stroke if they do take aspirin. For people at high risk of a heart attack or stroke, about 20 out of 100 will have a heart attack or stroke in the next 10 years if they do not take aspirin. About 16 out of 100 will have a heart attack or stroke if they do take aspirin.

Evidence shows that aspirin lowers the chance of heart attack, especially for people with a high risk of heart attack.

The tables above show the number of people who will have a heart attack or stroke in the next 10 years, arranged by risk level.

The information shown here is based on the best available evidence.

Current as of: April 9, 2019

Author: Healthwise Staff
Adam Husney, MD - Family Medicine
Martin J. Gabica, MD - Family Medicine
Michael P. Pignone, MD, MPH, FACP - Internal Medicine

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