Semin Thromb Hemost 2006; 32: 171-173 DOI: 10.1055/s-2006-939430
Copyright © 2006 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA.
Epidemiology of the Myeloproliferative Disorders Polycythemia Vera and Essential Thrombocythemia
Peter Johansson1
1 Associate Professor, Department of Hematology, Sahlgrenska University Hospital, Göteborg, Sweden

ABSTRACT

The annual incidence of polycythemia vera (PV) and essential thrombocythemia (ET) is ~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.

KEYWORDS

Polycythemia vera - essential thrombocythemia - incidence - mortality - survival