Survival in colon and rectal cancers in Finland and Sweden through 50 years

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dc.contributor.author Hemminki, Kari
dc.contributor.author Försti, Asta
dc.contributor.author Hemminki, Akseli
dc.date.accessioned 2021-09-21T08:54:01Z
dc.date.available 2021-09-21T08:54:01Z
dc.date.issued 2021
dc.identifier.citation Hemminki , K , Försti , A & Hemminki , A 2021 , ' Survival in colon and rectal cancers in Finland and Sweden through 50 years ' , BMJ open gastroenterology , vol. 8 , no. 1 , 000644 . https://doi.org/10.1136/bmjgast-2021-000644
dc.identifier.other PURE: 168639804
dc.identifier.other PURE UUID: 12ae9d04-4375-4efc-8536-fe639cd31e9e
dc.identifier.other WOS: 000674710700001
dc.identifier.uri http://hdl.handle.net/10138/334479
dc.description.abstract Objectives Global survival studies have shown favourable development in colon and rectal cancers but few studies have considered extended periods or covered populations for which medical care is essentially free of charge. Design We analysed colon and rectal cancer survival in Finland and Sweden over a 50-year period (1967-2016) using data from the Nordcan database. In addition to the standard 1-year and 5-year survival rates, we calculated the difference between these as a novel measure of how well survival was maintained between years 1 and 5. Results Relative 1-year and 5-year survival rates have developed favourably without major shifts for men and women in both countries. For Finnish men, 1-year survival in colon cancer increased from 50% to 82%, and for rectal cancer from 62% to 85%. The Swedish survival was a few per cent unit better for 1-year survival but for 5-year survival the results were equal. Survival of female patients for both cancers was somewhat better than survival in men through 50 years. Overall the survival gains were higher in the early compared with the late follow-up periods, and were the smallest in the last 10 years. The difference between 1-year and 5-year survival in colon cancer was essentially unchanged over the 50-year period while in rectal cancer there was a large improvement. Conclusions The gradual positive development in survival suggests a contribution by many small improvements rather than single breakthroughs. The improvement in 5-year survival in colon cancer was almost entirely driven by improvement in 1-year survival while in rectal cancer the positive development extended to survival past year 1, probably due to successful curative treatments. The current challenges are to reinvigorate the apparently stalled positive development and to extend them to old patients. For colon cancer, survival gains need to be extended past year 1 of diagnosis. en
dc.format.extent 9
dc.language.iso eng
dc.relation.ispartof BMJ open gastroenterology
dc.rights cc_by_nc
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject colorectal cancer
dc.subject diagnostic and therapeutic endoscopy
dc.subject health service research
dc.subject NORDIC COUNTRIES
dc.subject TRENDS
dc.subject END
dc.subject REGISTRIES
dc.subject AGE
dc.subject 3122 Cancers
dc.subject 3121 General medicine, internal medicine and other clinical medicine
dc.title Survival in colon and rectal cancers in Finland and Sweden through 50 years en
dc.type Article
dc.contributor.organization Department of Oncology
dc.contributor.organization HUS Comprehensive Cancer Center
dc.contributor.organization Helsinki University Hospital Area
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1136/bmjgast-2021-000644
dc.relation.issn 2054-4774
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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