Table 1.
Wells’ score
|
Features
|
Score, points
|
| Active cancer (in treatment or treated in the last 6 mo or under palliative care) | 1 |
| Paralysis, paresis, or recent plaster immobilization of the lower extremity | 1 |
| Bedridden recently > 3 d or major surgery within 12 wk | 1 |
| Localized tenderness along the deep venous system | 1 |
| Entire leg swollen | 1 |
| Calf swelling > 3 cm compared to the other leg | 1 |
| Pitting edema, confined to symptomatic leg | 1 |
| Collateral (nonvaricose) superficial veins present | 1 |
| Previously documented DVT | 1 |
| Alternative diagnosis to DVT as likely or more likely | -2 |
DVT: Deep venous thrombosis.