What is the purpose of the CHA2DS2-VASC score?
The CHA2DS2-VASC score is used to identify people who are at risk of stroke and who may benefit from anticoagulants to reduce their risk of stroke. The evidence suggested that a score of 2 or more is the ideal threshold for the CHA2DS2-VASC in terms of indicating the need for anticoagulation. The evidence showed that this threshold of 2 or more offered a good combination of high sensitivity (0.92) and adequate specificity (0.23).