. Author manuscript; available in PMC: 2016 Jun 20.

Published in final edited form as: Circ J. 2016 Mar 24;80(5):1061–1066. doi: 10.1253/circj.CJ-16-0239

Table 3.

Risk stratification schemes for bleeding prediction in AF patients using vitamin K antagonists

Risk score	HEMORR₂HAGES ⁴⁷	HAS-BLED ⁴⁸	ATRIA ⁴⁹	ORBIT-AF ⁵⁰

Variables	Age Hepatic / renal disease Hypertension Prior bleeding Stroke Alcohol abuse Anemia Cancer Reduced platelet count / function Genetic factors Fall risk	Age Abnormal renal / liver function Hypertension Prior bleeding Stroke Drugs/alcohol Labile INR	Age Renal disease Hypertension Prior bleeding Anemia	Age Abnormal kidney function Prior bleeding Anemia Antiplatelet use (heart failure) (cancer) (COPD) (hip fracture / osteoporosis) (smoking)

INR: International Normalized Ratio