| Baseline features | Score |
|
Active cancer (patients with regional lymph node involvement or distant metastases who received chemotherapy or radiotherapy in the prior 6 months) |
3 |
|
History of VTE (except for superficial vein thrombosis) |
3 |
|
Immobilization (bed rest with bathroom privileges, either due to the patient’s limitations or physician’s order, for ≥3 days) |
3 |
|
Previous diagnosis of thrombophilia (deficiencies of antithrombin, protein C, protein S, or factor V Leiden, prothrombin gene G20210A mutation, or antiphospholipid syndrome) |
3 |
|
Recent (≤1 month) trauma or surgery |
2 |
|
≥70 years of age |
1 |
|
Heart failure or respiratory failure |
1 |
|
Acute myocardial infarction or ischemic stroke |
1 |
|
Acute infection or rheumatologic disorder |
1 |
|
Obesity (BMI ≥30 kg/m2) |
1 |
|
Hormonal therapy |
1 |
|
Interpretation: Score ≥4: High risk of VTE | |
|
Adapted from J Thromb Haemost. 2010;8(11):2450-7. | |
|
BMI, body mass index; VTE, venous thromboembolism. | |