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A huge study showing that during 754 389 person-years of anticoagulant treatment with apixaban, dabigatran, rivaroxaban, and warfarin, the risk of hospitalization for upper gastrointestinal tract bleeding was highest for rivaroxaban.

The use of proton pump inhibitor cotherapy (264 447 person-years) was associated with a significantly lower overall risk of gastrointestinal bleeding for all anticoagulants (incidence rate ratio, 0.66).

– Beverely J. Hunt