Table 1.

Atrial fibrillation stroke risk score and bleeding risk score acronyms

Stroke Risk Scores
  • CHADS2

  • • Congestive heart failure

  • • Hypertension

  • • Age ≥75 years

  • • Diabetes mellitus

  • • Stroke or transient ischemic attack

  • CHADS2-VASc

  • • Congestive heart failure

  • • Hypertension

  • • Age ≥75 years

  • • Diabetes mellitus

  • • Stroke or transient ischemic attack

  • • Vascular disease

  • • Age 65-74 years

  • • Sex category

  • R2CHADS2

  • • Renal dysfunction

  • • Congestive heart failure

  • • Hypertension

  • • Age ≥75 years

  • • Diabetes mellitus

  • • Stroke or transient ischemic attack

Bleeding Risk Scores
  • OBRI

  • (Outpatient Bleeding Risk Index)

  • • Age≥65

  • • History of stroke

  • • History of gastrointestinal bleeding

  • • One or more of the following

  •  • Recent myocardial infarction

  •  • Hematocrit <30%

  •  • Serum creatinine >1.5 mg/dL

  •  • Diabetes mellitus

  • HEMORR2HAGES

  • • Hepatic or renal disease

  • • Ethanol abuse

  • • Malignancy

  • • Older age (>75 years)

  • • Reduced platelet count or function

  • • Rebleeding risk (history of prior bleed)

  • • Hypertension

  • • Anemia

  • • Genetic factors

  • • Excessive fall risk

  • • Stroke

  • HAS-BLED

  • • Hypertension

  • • Abnormal renal and/or hepatic function

  • • Stroke

  • • Bleeding tendency/predisposition

  • • Labile INR on warfarin

  • • Elderly (age >65 years)

  • • Drugs (aspirin or NSAIDs) and/or alcohol