Survival for patients with rare haematologic malignancies: Changes in the early 21st century

Abstract Introduction Population-level survival has improved for common haematologic malignancies in the early 21st century. However, relatively few population-level data are available for rare haematologic malignancies. Methods Data were extracted from 12 cancer registries in Germany and the Surveillance, Epidemiology and End Results database in the United States (US). Cases of haematologic malignancies with an incidence of less than 1 per 100,000 were selected for analysis. Period analysis was used to determine 5-year relative survival (RS) for the years 2003–2012, and modelled period analysis was used to determine changes in survival between 2003–2007 and 2008–2012. Results Seven individ…