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| VTE risk factor | Points |
|---|---|
| Previous VTE | 3 |
| Known thrombophilia | 2 |
| Cancer | 2 |
| Current lower limb paralysis | 2 |
| Immobilization | 1 |
| ICU/CCU stay | 1 |
| Age >60 | 1 |
VTE: venous thromboembolism, ICU: intensive care unit, CCU: coronary care unit Low risk: score 0–1 (VTE risk <1.0%) Moderate risk: score 2–3 (VTE risk 1.0–1.5%) High risk: score of ≥4 (VTE risk >4%)
