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Risk stratification in PV and ET based on thrombotic risk
Patients with ET who have a history of thrombosis or who are 60 years of age or older are considered to be at high risk, whereas patients who are younger than age 60 years or who lack a history of thrombosis but have CV risk factors (eg, diabetes, hypertension, or tobacco use) are considered to be at intermediate risk.
Risk category | Age>60 years or history of thrombosis | Cardiovascular risk factors * |
---|---|---|
Low | No | No |
Intermediate | No | Yes |
High | Yes |