title: Trends in net survival from 15 cancers in six European Latin countries: the SUDCAN population-based study material.
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.
authors.affiliation: aRomagna Cancer Registry, Romagna Cancer Institute (IRST) IRCCS, Meldola, Forlì, Italy bNational Centre for Epidemiology, Surveillance and Health Promotion, ISS, Rome cDipartimento di Medicina Predittiva e per la Prevenzione, S.S.D. Epidemiologia Valutativa, Fondazione IRCCS Istituto Nazionale Tumori, Milano, Italy dDepartment of Biostatistics, University Hospital of Lyon eUniversity of Lyon, Lyon fUniversity of Lyon 1 gCNRS UMR 5558, Biometrics and Evolutionary Biology Laboratory (LBBE), BioMaths-Health Department, Health-Biostatistics Group, Villeurbanne hDepartment of Non-communicable Diseases and Injuries, French Institute for Public Health Surveillance (Invs), Sainte-Maurice iDigestive Cancer Registry of Burgundy, CHU de Dijon jINSERM U 866, University of Burgundy, Dijon, France.
authors.forename: Emanuele
authors.initials: E
authors.lastname: Crocetti
authors.forename: Nadine
authors.initials: N
authors.lastname: Bossard
authors.forename: Zoe
authors.initials: Z
authors.lastname: Uhry
authors.forename: Laurent
authors.initials: L
authors.lastname: Roche
authors.forename: Silvia
authors.initials: S
authors.lastname: Rossi
authors.forename: Riccardo
authors.initials: R
authors.lastname: Capocaccia
authors.forename: Jean
authors.initials: J
authors.lastname: Faivre
mesh_terms: D001530:Belgium / Q000453:epidemiology; D016208:Databases, Factual / Q000639:trends*; D005060:Europe / Q000453:epidemiology; D005500:Follow-Up Studies; D005602:France / Q000453:epidemiology; D006801:Humans; D007558:Italy / Q000453:epidemiology; D009369:Neoplasms / Q000175:diagnosis* / Q000401:mortality*; D011159:Population Surveillance / Q000379:methods; D011174:Portugal / Q000453:epidemiology; D013030:Spain / Q000453:epidemiology; D016019:Survival Analysis; D015996:Survival Rate / Q000639:trends; D013557:Switzerland / Q000453:epidemiology