Ihaddadene et al reported a model to identify the risk ofan occult malignancy in a patient with an unprovoked venous thromboembolism. The authors are from multiple institutions in Canada participating in the Screening for Occult Malignancy in Patients with Idiopathic Venous Thromboembolism (SOME) Trial.
Patient selection: adult with first unprovoked venous thromboembolism (VTE)
Parameters:
(1) age in years
(2) history of previous provoked venous thromboembolism (VTE)
(3) smoking status
Age
Prior Provoked
Current Smoker
2-Year Risk of Cancer
< 60
no
no
0.2%
no
yes
0.6%
yes
no
0.7%
yes
yes
1.8%
>= 60
no
no
0.6%
no
yes
1.8%
yes
no
2%
yes
yes
5.5%
Age
Prior Provoked
Current Smoker
5-Year Risk of Cancer
< 60
no
no
2%
no
yes
5%
yes
no
6%
yes
yes
15%
>= 60
no
no
6%
no
yes
15%
yes
no
17%
yes
yes
40%
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