Table 1.
Calculations of the CHADS2 and CHA2DS2-VASc score.
| CHADS2 | CHA2DS2-VASc | |
|---|---|---|
| Congestive heart failure | 1 | 1 |
| Hypertension | 1 | 1 |
| Age ≥ 75 y | 1 | 2 |
| Diabetes mellitus | 1 | 1 |
| Previous Stroke/TIA | 2 | 2 |
| Vascular disease (prior MI, PAD, or aortic plaque) | – | 1 |
| Age 65–74 y | – | 1 |
| Sex category(i.e., female sex) | – | 1 |
| Maximum score | 6 | 9 |
CHADS2, congestive heart failure, hypertension, age ≥ 75 [doubled], diabetes mellitus, and prior stroke or transient ischemic attack; CHA2DS2-VASc, congestive heart failure, hypertension, age ≥ 75 [doubled], diabetes, stroke [doubled]-vascular disease, age 65–74, sex category [female]; MI, myocardial infarction; PAD, peripheral artery disease; TIA, transient ischemic attack