Table 1. Stroke and Bleeding Risk Scores in Atrial Fibrillation.
| CHADS2 | |
|---|---|
| Variables | Points |
| Congestive heart failure | 1 |
| Hypertension | 1 |
| Age ≥ 75 years | 1 |
| Diabetes mellitus | 1 |
| Stroke/TIA | 2 |
| Scoring: Continuous or Low (0 points), Intermediate (1 point), and High (2-6 points) | |
| CHA2DS2-VASc | |
| Variables | Points |
| Congestive heart failure | 1 |
| Hypertension | 1 |
| Age ≥ 75 years | 2 |
| Diabetes mellitus | 1 |
| Stroke/TIA | 2 |
| Vascular disease | 1 |
| Age 65-74 years | 1 |
| Female sex | 1 |
| Scoring: Continuous or Low (0 points), Intermediate (1 point), and High (2-10 points) | |
| ATRIA Bleeding Score | |
| Variables | Points |
| Anemia | 3 |
| Severe renal disease | 3 |
| Age ≥ 75 years | 2 |
| Prior bleeding | 1 |
| Hypertension | 1 |
| Scoring: Continuous or Low (0-3 points), Intermediate (4 points), and High (5-10 points) | |
| HAS-BLED | |
| Variables | Points |
| Hypertension | 1 |
| Abnormal renal/liver function | 1-2 |
| Stroke history | 1 |
| Bleeding history or predisposition | 1 |
| Labile INR | 1 |
| Age > 65 yrs | 1 |
| Drugs/alcohol concomitantly | 1-2 |
| Scoring: Continuous | |
International normalized ratio (INR); Transient ischemic attack (TIA)