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Early detection of breast cancer rectifies inequality of breast cancer outcomes.
Tabár, László; Chen, Tony Hsiu-Hsi; Yen, Amy Ming-Fang; Dean, Peter B; Smith, Robert A; Jonsson, Håkan; Törnberg, Sven; Chen, Sam Li-Sheng; Chiu, Sherry Yueh-Hsia; Fann, Jean Ching-Yuan; Ku, May Mei-Sheng; Wu, Wendy Yi-Ying; Hsu, Chen-Yang; Chen, Yu-Ching; Svane, Gunilla; Azavedo, Edward; Grundström, Helene; Sundén, Per; Leifland, Karin; Frodis, Ewa; Ramos, Joakim; Epstein, Birgitta; Åkerlund, Anders; Sundbom, Ann; Bordás, Pál; Wallin, Hans; Starck, Leena; Björkgren, Annika; Carlson, Stina; Fredriksson, Irma; Ahlgren, Johan; Öhman, Daniel; Holmberg, Lars; Duffy, Stephen W.
Afiliación
  • Tabár L; Falun Central Hospital, Falun, Sweden.
  • Chen TH; National Taiwan University, Taipei City.
  • Yen AM; Taipei Medical University, Taipei City.
  • Dean PB; Department of Diagnostic Radiology, University of Turku, Turku, Finland.
  • Smith RA; American Cancer Society, Atlanta, GA, USA.
  • Jonsson H; Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden.
  • Törnberg S; Regional Cancer Center Stockholm Gotland, Stockholm, Sweden.
  • Chen SL; Taipei Medical University, Taipei City.
  • Chiu SY; Chang Gung University, Taoyuan City.
  • Fann JC; Kainan University, Taoyuan City.
  • Ku MM; National Taiwan University, Taipei City.
  • Wu WY; Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden.
  • Hsu CY; National Taiwan University, Taipei City.
  • Chen YC; National Taiwan University, Taipei City.
  • Svane G; Regional Cancer Center Stockholm Gotland, Stockholm, Sweden.
  • Azavedo E; Regional Cancer Center Stockholm Gotland, Stockholm, Sweden.
  • Grundström H; Danderyd Hospital, Danderyd, Sweden.
  • Sundén P; Danderyd Hospital, Danderyd, Sweden.
  • Leifland K; Sankt Göran Hospital, Stockholm, Sweden.
  • Frodis E; Västerås Central Hospital, Västerås, Sweden.
  • Ramos J; Västerås Central Hospital, Västerås, Sweden.
  • Epstein B; Örebro University Hospital, Örebro, Sweden.
  • Åkerlund A; Central Hospital, Gävle, Sweden.
  • Sundbom A; Karlstad Central Hospital, Karlstad, Sweden.
  • Bordás P; Sunderby Hospital, Department of Radiology, Norrbotten County, Sweden.
  • Wallin H; Sundsvall Hospital, Sundsvall, Sweden.
  • Starck L; Sundsvall Hospital, Sundsvall, Sweden.
  • Björkgren A; Norrlands University Hospital, Umeå, Sweden.
  • Carlson S; Norrlands University Hospital, Umeå, Sweden.
  • Fredriksson I; Regional Cancer Center Stockholm Gotland, Stockholm, Sweden.
  • Ahlgren J; Regional Cancer Center, Uppsala University Hospital, Uppsala, Sweden.
  • Öhman D; Regional Cancer Center Stockholm Gotland, Stockholm, Sweden.
  • Holmberg L; Uppsala University, Uppsala, Sweden and Translational Oncology & Urology Research (TOUR), School of Cancer and Pharmaceutical Sciences, King's College London, London, United Kingdom.
  • Duffy SW; Wolfson Institute of Preventive Medicine, Queen Mary University of London, London, UK.
J Med Screen ; 28(1): 34-38, 2021 03.
Article en En | MEDLINE | ID: mdl-32370610
OBJECTIVES: To explain apparent differences among mammography screening services in Sweden using individual data on participation in screening and with breast cancer-specific survival as an outcome. METHODS: We analysed breast cancer survival data from the Swedish Cancer Register on breast cancer cases from nine Swedish counties diagnosed in women eligible for screening. Data were available on 38,278 breast cancers diagnosed and 4312 breast cancer deaths. Survival to death from breast cancer was estimated using the Kaplan-Meier estimate, for all cases in each county, and separately for cases of women participating and not participating in their last invitation to screening. Formal statistical comparisons of survival were made using proportional hazards regression. RESULTS: All counties showed a reduction in the hazard of breast cancer death with participation in screening, but the reductions for individual counties varied substantially, ranging from 51% (95% confidence interval 46-55%) to 81% (95% confidence interval 74-85%). Survival rates in nonparticipating women ranged from 53% (95% confidence interval 40-65%) to 74% (95% confidence interval 72-77%), while the corresponding survival in women participating in screening varied from 80% (95% confidence interval 77-84%) to 86% (95% confidence interval 83-88%), a considerably narrower range. CONCLUSIONS: Differences among counties in the effect of screening on breast cancer outcomes were mainly due to variation in survival in women not participating in screening. Screening conferred similarly high survival rates in all counties. This indicates that the performance of screening services was similar across counties and that detection and treatment of breast cancer in early-stage reduces inequalities in breast cancer outcome.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Neoplasias de la Mama / Mamografía / Detección Precoz del Cáncer Tipo de estudio: Diagnostic_studies / Screening_studies Límite: Adult / Aged / Female / Humans / Middle aged País/Región como asunto: Europa Idioma: En Revista: J Med Screen Asunto de la revista: EPIDEMIOLOGIA / SAUDE PUBLICA Año: 2021 Tipo del documento: Article País de afiliación: Suecia Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Neoplasias de la Mama / Mamografía / Detección Precoz del Cáncer Tipo de estudio: Diagnostic_studies / Screening_studies Límite: Adult / Aged / Female / Humans / Middle aged País/Región como asunto: Europa Idioma: En Revista: J Med Screen Asunto de la revista: EPIDEMIOLOGIA / SAUDE PUBLICA Año: 2021 Tipo del documento: Article País de afiliación: Suecia Pais de publicación: Reino Unido