Table 2 Risk Scoring System of cancer-associated thrombosis criteria for assessing venous thromboembolism in patients with cancer

Risk factor

Point

Present patient

 40 to 80-year-old female

1

 > 80 years old

−1

Prior history of VTE

3

 Low VTE propensity

  Head and neck, endocrine

−2

  Esophagus, breast

−1

 High VTE propensity

Lung, gynecologic, sarcoma, metastasis unknown origin

1

  Myeloma, prostate

2

 Intermediate VTE propensity

  Other cancer subtypes

0

Risk category

Score (Total points)

Incidence of VTE

High risk

3–

8.7%

Intermediate risk

1–2

1.5%

Low risk

=0

0.9%

Very low risk

−4 to −1

0.5%