see also:
| hypertension (uncontrolled, systolic >= 160mm Hg) |
| abnormal liver function (cirrhosis, bilrubin > 2x normal, AST/ALT/AP > 3x normal) |
| abnormal kidney function (dialysis, transplant, CRN > 200micromol/L) |
| PH stroke (CVA) |
| Bleed predisposition (PH major bleed or predisposition to bleeding) |
| Labile INRs |
| Elderly (age > 65 yrs) |
| Drugs or alcohol abuse (>= 8 alcohol drinks per week) |
| score | annual major bleed risk on warfarin |
|---|---|
| 0 | 0.9% |
| 1 | 3.4% |
| 2 | 4.1% |
| 3 | 5.8% |
| 4 | 8.9% |
| 5 | 9.1% |
| >5 | > 9% |