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dc.contributor.authorHofvind, Solveigen_US
dc.contributor.authorUrsin, Giskeen_US
dc.contributor.authorTretli, Steinaren_US
dc.contributor.authorSebuødegård, Sofieen_US
dc.contributor.authorMøller, Bjørnen_US
dc.date.accessioned2014-04-03T11:35:46Z
dc.date.available2014-04-03T11:35:46Z
dc.date.issued2013-05-29en_US
dc.identifier.citationHofvind, S., Ursin, G., Tretli, S., Sebuødegård, S., & Møller, B. (2013). Breast cancer mortality in participants of the Norwegian Breast Cancer Screening Program. Cancer, 119(17), 3106-3112.en_US
dc.identifier.issn0008-543Xen_US
dc.identifier.otherFRIDAID 1042245en_US
dc.identifier.urihttp://hdl.handle.net/10642/1966
dc.description.abstractBACKGROUND The Norwegian Breast Cancer Screening Program started in 1996. To the authors' knowledge, this is the first report using individual-based data on invitation and participation to analyze breast cancer mortality among screened and nonscreened women in the program. METHODS Information on dates of invitation, attendance, breast cancer diagnosis, emigration, death, and cause of death was linked by using unique 11-digit personal identification numbers assigned all inhabitants of Norway at birth or immigration. In total, 699,628 women ages 50 to 69 years without prior a diagnosis of breast cancer were invited to the program from 1996 to 2009 and were followed for breast cancer through 2009 and death through 2010. Incidence-based breast cancer mortality rate ratios (MRRs) were compared between the screened and nonscreened cohorts using a Poisson regression model. The MRRs were adjusted for calendar period, attained age, years since inclusion in the cohorts, and self-selection bias. RESULTS The crude breast cancer mortality rate was 20.7 per 100,000 women-years for the screened cohort compared with 39.7 per 100,000 women-years for the nonscreened cohort, resulting in an MRR of 0.52 (95% confidence interval, 0.47-0.59). The mortality reduction associated with attendance in the program was 43% (MRR, 0.57; 95% confidence interval, 0.51-0.64) after adjusting for calendar period, attained age, years after inclusion in the cohort, and self-selection bias. CONCLUSIONS After 15 years of follow-up, a 43% reduction in mortality was observed among women who attended the national mammographic screening program in Norway.en_US
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.ispartofseriesCancer;119(17)en_US
dc.subjectMammographyen_US
dc.subjectMass screeningen_US
dc.subjectBreast neoplasmsen_US
dc.subjectNorwayen_US
dc.subjectVDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Onkologi: 762en_US
dc.subjectVDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Radiologi og bildediagnostikk: 763en_US
dc.titleBreast cancer mortality in participants of the Norwegian Breast Cancer Screening Programen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionCopyright © 2013 American Cancer Society This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en_US
dc.identifier.fulltextfulltext https://oda.hio.no/jspui/bitstream/10642/1966/1/1042245.pdf
dc.identifier.doihttp://dx.doi.org/10.1002/cncr.28174


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