Table 1: VTE risk factor categories in this Worcester score, note that patients with a history of cancer or inflammatory conditions like IBD or rheumatoid arthritis are automatically classified as high risk.
High risk factors |
score |
Previous VTE |
2 |
Known thrombophilia |
2 |
Limb immobility |
2 |
Moderate risk factors |
score |
Obesity (BMI > 30) |
1 |
Hormone therapy |
1 |
Superficial vein thrombosis |
1 |
Other high risk factors |
2 |
*Cancer, inflammatory arthritis or inflammatory bowel disease.