CHADS2 Calculator

summary, references, & relevant links
Summary: The CHADS2 score is used to help decide whether or not to anticoagulant. An approach to the decision of warfarin for oral anticoagulation for atrial fibrillation is suggested in Am Fam Physician. 2005 Jun 15;71(12):2348-2350.1) Use the CHADS2 rule as well as the ACCP rule to determine the risk of stroke. 2) If both these measures predict moderate risk of stroke, proceed to calculate the Outpatient Bleeding Risk Index and weigh the risks versus the benefits.
References: Am Fam Physician. 2005 Jun 15;71(12):2348-2350. Am Fam Physician. 2010 Mar 15;81(6):780-782.