Trends in net survival from 15 cancers in six European Latin countries

Emanuele Crocetti, Nadine Bossard, Zoe Uhry, Laurent Roche, Silvia Rossi, Riccardo Capocaccia, Jean Faivre, GRELL EUROCARE-5 Working Group, Gemma Gatta, Milena Sant, Hade Amash, Lucia Mangone

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Abstract

The aim of the SUDCAN collaborative study was to compare the net survival from 15 cancers diagnosed in 2000-2004 in six European Latin countries and provide trends in net survival and dynamics of excess mortality rates up to 5 years after diagnosis from 1992 to 2004 in France, Italy, Spain, and Switzerland, and from 2000 to 2004 in Belgium and Portugal. This paper presents a detailed description of the data analyzed and quality indicators. Incident cases from Belgium, France, Italy, Portugal, Spain, and Switzerland were retrieved from 56 general or specialized population-based cancer registries that participated in the EUROCARE-5 database. Fifteen cancer sites were analyzed. The data were checked according to the EUROCARE protocol. The percentages of excluded cases, cases based on death-certificate only, cases lost to follow-up at 5 years after diagnosis, and the proportions of microscopically verified cases were evaluated across countries and cancer sites. Data exclusions for major flaws were negligible. Cases based on death-certificate only were quite rare, except for some poor-prognosis cancers in some countries. The site-specific proportions of microscopically verified cases were generally high, but slightly lower in Italy than elsewhere. The percentage of cases lost to follow-up at 5 years after diagnosis was generally low. The net survival analyses in 2000-2004 included 873 314 tumors, whereas trend analyses included 1 426 004 tumors. The quality of the data analyzed was generally good. In fact, the analyzed data have been already checked and accepted for EUROCARE-5. However, slight differences in quality indexes, for some cancers, should be kept in mind in the interpretation of survival comparisons across countries.
Original languageEnglish
Pages (from-to)S3-S8
JournalEuropean Journal of Cancer Prevention
Volume26 Trends in cancer net survival in six European Latin Countries: the SUDCAN study
DOIs
Publication statusPublished - Jan 2017

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    Crocetti, E., Bossard, N., Uhry, Z., Roche, L., Rossi, S., Capocaccia, R., Faivre, J., Group, GRELL. EUROCARE. W., Gatta, G., Sant, M., Amash, H., & Mangone, L. (2017). Trends in net survival from 15 cancers in six European Latin countries. European Journal of Cancer Prevention, 26 Trends in cancer net survival in six European Latin Countries: the SUDCAN study, S3-S8. https://doi.org/10.1097/CEJ.0000000000000300