Epidemiological review reports higher mortality in polycythemia vera but normal survival in essential thrombocythemia, highlighting distinct prognostic profiles across myeloproliferative disorders.
The annual incidence of polycythemia vera (PV) and essential thrombocythemia (ET) is approximately 2 and 1.5 per 100,000 inhabitants, respectively, if based on large population surveys and adjusted to a standard population. Survival for ET patients does not differ from that of the general population. However, it appears that PV patients have a significantly higher mortality, at least for patients diagnosed before 1990.
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Peter Johansson (2006) studied this question.
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