Aspirin bleeds far higher than estimated

The widespread use of aspirin has been called into question, with a study finding real-world bleeding rates are far higher than previously thought.

The study of over 370,000 Italian primary care patients found those taking low-dose aspirin were 55% more likely to be hospitalised for major intracranial and gastrointestinal hemorrhagic events than those not taking aspirin.

This equated to a number needed to harm of 500, researchers wrote Wednesday in the Journal of the American Medical Association.