Table 3.

Khorana risk score [8]

Patient characteristic	Score
Site of cancer
Very high risk (stomach, pancreas)	2
High risk (lung, lymphoma, gynecologic, genitourinary excluding prostate)	1
Platelet counts ≥350,000 per mm3	1
Leukocyte counts > 11,000 per mm3	1
Hemoglobin < 10 g/dL or use of ESAs	1
BMI ≥35 kg/m2	1

High-risk score ≥ 3; Intermediate risk score = 1–2; Low-risk score = 0. Primary brain tumor and myeloma patients were not part of this study. Information on the impact of prior VTE is also not available in this study. BMI: Body mass index; ESA: Erythropoiesis-stimulating agent