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Outpatient Bleeding Risk Index (OBRI) Calculator

  • Age >65 years
  • History of Stroke
  • History of GI Bleeding
  • Comorbidity: Diabetes Mellitus, Cardiovascular Disease, or Renal Disease
  • Outpatient Bleeding Risk Index (OBRI): Explanation and Clinical Context
    OBRI is a validated scoring system developed to predict the risk of major bleeding in outpatients receiving oral anticoagulant therapy, particularly warfarin.
    It assigns 1 point each for four clinical risk factors: age >65 years, history of stroke, history of gastrointestinal bleeding, and comorbid conditions including diabetes mellitus, cardiovascular disease, or renal disease.
    The total score ranges from 0 to 4, stratifying patients into low, moderate, high, or very high risk for major bleeding.
    This tool aids clinicians in risk stratification, guiding anticoagulation therapy decisions, and planning follow-up intensity.

    Reference:
    Ruiz M, et al. Outpatient Bleeding Risk Index for patients on oral anticoagulants. Arch Intern Med. 1998;158:409-416. doi:10.1001/archinte.158.4.409

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Appcardio may contain errors. Always verify the calculation and its accuracy before clinical use.