Review question / Objective: To compare the risk of stroke/systemic embolism (S/SE), mortality and bleeding in AF patients with reduced-dose DOACs. Rationale: Although each DOAC has its dose reduction criteria, many physicians still prefer to prescribe the reduced-dose DOACs, regardless of label adherence. However, inappropriate administration of DOACs is an important clinical problem because patients may not benefit from the recommended DOAC dose to prevent stroke and systemic embolism. Therefore, this study aims to investigate the risk of stroke/systemic embolism (S/SE) and mortality in AF patients with reduced-dose DOACs. Condition being studied: Adult patients with AF taking DOACs or Warfarin.
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