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Title: Burden and centralised treatment in Europe of rare tumours : results of RARECAREnet - a population-based study
Authors: Gatta, Gemma
Capocaccia, Riccardo
Botta, Laura
Mallone, Sandra
Angelis, Roberta De
Ardanaz, Eva
Comber, Harry
Dimitrova, Nadya
Leinonen, Maarit K.
Siesling, Sabine
Zwan, Jan M. van der
Eycken, Liesbet Van
Visser, Otto
Žakelj, Maja P.
Anderson, Lesley A.
Bella, Francesca
Innos, Kaire
Otter, Renée
Stiller, Charles A.
Trama, Annalisa
Calleja, Neville
Keywords: Tumors -- Treatment -- Europe
Health surveys
Cancer -- Mortality
Cancer -- Patients -- Long-term care
Issue Date: 2017
Publisher: The Lancet Publishing Group
Citation: Gatta, G., Capocaccia, R., Botta, L., Mallone, S., De Angelis, R., Ardanaz, E.,…Calleja, N. (2017). Burden and centralised treatment in Europe of rare tumours : results of RARECAREnet—a population-based study. The Lancet Oncology, 18(8), 1022-1039.
Abstract: Background: Rare cancers pose challenges for diagnosis, treatments, and clinical decision making. Information about rare cancers is scant. The RARECARE project defined rare cancers as those with an annual incidence of less than six per 100 000 people in European Union (EU). We updated the estimates of the burden of rare cancers in Europe, their time trends in incidence and survival, and provide information about centralisation of treatments in seven European countries. Methods: We analysed data from 94 cancer registries for more than 2 million rare cancer diagnoses, to estimate European incidence and survival in 2000–07 and the corresponding time trends during 1995–2007. Incidence was calculated as the number of new cases divided by the corresponding total person-years in the population. 5-year relative survival was calculated by the Ederer-2 method. Seven registries (Belgium, Bulgaria, Finland, Ireland, the Netherlands, Slovenia, and the Navarra region in Spain) provided additional data for hospitals treating about 220 000 cases diagnosed in 2000–07. We also calculated hospital volume admission as the number of treatments provided by each hospital rare cancer group sharing the same referral pattern. Findings: Rare cancers accounted for 24% of all cancers diagnosed in the EU during 2000–07. The overall incidence rose annually by 0.5% (99·8% CI 0·3–0·8). 5-year relative survival for all rare cancers was 48·5% (95% CI 48·4 to 48·6), compared with 63·4% (95% CI 63·3 to 63·4) for all common cancers. 5-year relative survival increased (overall 2·9%, 95% CI 2·7 to 3·2), from 1999–2001 to 2007–09, and for most rare cancers, with the largest increases for haematological tumours and sarcomas. The amount of centralisation of rare cancer treatment varied widely between cancers and between countries. The Netherlands and Slovenia had the highest treatment volumes. Interpretation: Our study benefits from the largest pool of population-based registries to estimate incidence and survival of about 200 rare cancers. Incidence trends can be explained by changes in known risk factors, improved diagnosis, and registration problems. Survival could be improved by early diagnosis, new treatments, and improved case management. The centralisation of treatment could be improved in the seven European countries we studied.
Appears in Collections:Scholarly Works - FacM&SPH

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