Khorana Risk Score for Venous Thromboembolism in Cancer Patients

Pre-chemotherapy platelet count ≥350x10⁹/L (350,000 cell/µL = 350 × 10⁹/L)

Yes (+1)

No (0)

Hemoglobin level <10 g/dL or using RBC growth factors

Yes (+1)

No (0)

Pre-chemotherapy leukocyte count >11x10⁹/L (11,000 cell/µL = 11 × 10⁹/L)

Yes (+1)

No (0)

BMI ≥35 kg/m²

Yes (+1)

No (0)

Height, centimeter

Weight, kg

BMI, kg/m²

Result

Low risk Khorana risk score = 0: 2.5-month rate of VTE 0.3-0.8 %

Reference

Alok A. Khorana, Nicole M. Kuderer, Eva Culakova, Gary H. Lyman, Charles W. Francis; Development and validation of a predictive model for chemotherapy-associated thrombosis. Blood 2008; 111 (10): 4902–4907. doi: https://doi.org/10.1182/blood-2007-10-116327