Current hormone therapy (COCP/HRT/Tamoxifen)Yes
Personal or first-degree relative VTE historyYes
Active smokerYes
Any recent hospital admission/major surgeryYes
Pregnant or immediately post partumYes
Any serious medical comorbidity, including cardiac failure/COPD/chronic renal failure or inflammatory bowel diseaseYes
Extensive varicositiesYes
Active cancerYes
Obesity (BMI >30)Yes
Known thrombophiliaYes
Age >60Yes