Population-based service mammography screening: the Icelandic experience
Kristjan Sigurdsson,1,3 Elínborg Jóna Ólafsdóttir,21The Icelandic Cancer Detection Clinic, 2The Icelandic Cancer Registry, Icelandic Cancer Society, 3Faculty of Medicine, University of Iceland, Reykjavik, IcelandObjective: This study analyzes the efficacy of the Icelandic population-based service ma...
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ftdovepress:oai:dovepress.com/13011 2023-05-15T16:52:27+02:00 Population-based service mammography screening: the Icelandic experience Sigurdsson,Kristjan Ólafsdóttir,ElÃnborg 2013-05-09 text/html https://www.dovepress.com/population-based-service-mammography-screening-the-icelandic-experienc-peer-reviewed-fulltext-article-BCTT en eng Dove Press info:eu-repo/semantics/altIdentifier/doi/10.2147/BCTT.S44671 https://www.dovepress.com/population-based-service-mammography-screening-the-icelandic-experienc-peer-reviewed-fulltext-article-BCTT info:eu-repo/semantics/openAccess Breast Cancer: Targets and Therapy Original Research info:eu-repo/semantics/article 2013 ftdovepress https://doi.org/10.2147/BCTT.S44671 2022-12-27T21:36:05Z Kristjan Sigurdsson,1,3 Elínborg Jóna Ólafsdóttir,21The Icelandic Cancer Detection Clinic, 2The Icelandic Cancer Registry, Icelandic Cancer Society, 3Faculty of Medicine, University of Iceland, Reykjavik, IcelandObjective: This study analyzes the efficacy of the Icelandic population-based service mammography screening.Material and methods: Women aged 40–69 were invited for screening at 2-year intervals starting in November 1987. The study evaluates: (A) attendance and other screened performance parameters during 1998–2010; (B) trends in age-standardized and age-specific incidence rates during 1969–2010 and mortality rates during 1969–2010; and (C) distribution of risk factors and disease specific death rates according to mode of detection.Results: (A) In the age group of 40–69, the average 2-year attendance was 62%, recall rate was 4.1%, needle biopsy rate was 1.3%, surgery rate was 0.6%, invasive cancer rate was 0.4%, and ductal carcinoma in situ (DCIS) rate was 0.06%. (B) The linear incidence trend after the start of screening decreased significantly in the age group 40–49, increased significantly in the age group 50–69, but decreased non-significantly in the age group 70–79. The decreased age-specific incidence in the 70–79 age group was, however, greater than the increased age-specific incidence at the ages 50–69. The mortality rate decreased 41% for all age groups and the linear mortality trend decreased significantly at ages 40–49, 50–69, and 70–79. In the age group 40–74 years, the age-specific mortality decreased by 6.9 cases per 2000 during a 10-year period. (C) Screen-detected women had significantly smaller tumors, more favorable tumor grade, fewer axillary metastases and, after correction for other risk factors, the likelihood of dying from cancer decreased 54% (hazard ratio: 0.46; 95% confidence interval: 0.31–0.69) for these patients compared to cases of nonparticipators.Conclusion: The study results confirm acceptable rates of recalls and referrals for further diagnosis and treatment, and ... Article in Journal/Newspaper Iceland Dove Medical Press Breast Cancer: Targets and Therapy 17 |
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Breast Cancer: Targets and Therapy Sigurdsson,Kristjan Ólafsdóttir,ElÃnborg Population-based service mammography screening: the Icelandic experience |
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Breast Cancer: Targets and Therapy |
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Kristjan Sigurdsson,1,3 Elínborg Jóna Ólafsdóttir,21The Icelandic Cancer Detection Clinic, 2The Icelandic Cancer Registry, Icelandic Cancer Society, 3Faculty of Medicine, University of Iceland, Reykjavik, IcelandObjective: This study analyzes the efficacy of the Icelandic population-based service mammography screening.Material and methods: Women aged 40–69 were invited for screening at 2-year intervals starting in November 1987. The study evaluates: (A) attendance and other screened performance parameters during 1998–2010; (B) trends in age-standardized and age-specific incidence rates during 1969–2010 and mortality rates during 1969–2010; and (C) distribution of risk factors and disease specific death rates according to mode of detection.Results: (A) In the age group of 40–69, the average 2-year attendance was 62%, recall rate was 4.1%, needle biopsy rate was 1.3%, surgery rate was 0.6%, invasive cancer rate was 0.4%, and ductal carcinoma in situ (DCIS) rate was 0.06%. (B) The linear incidence trend after the start of screening decreased significantly in the age group 40–49, increased significantly in the age group 50–69, but decreased non-significantly in the age group 70–79. The decreased age-specific incidence in the 70–79 age group was, however, greater than the increased age-specific incidence at the ages 50–69. The mortality rate decreased 41% for all age groups and the linear mortality trend decreased significantly at ages 40–49, 50–69, and 70–79. In the age group 40–74 years, the age-specific mortality decreased by 6.9 cases per 2000 during a 10-year period. (C) Screen-detected women had significantly smaller tumors, more favorable tumor grade, fewer axillary metastases and, after correction for other risk factors, the likelihood of dying from cancer decreased 54% (hazard ratio: 0.46; 95% confidence interval: 0.31–0.69) for these patients compared to cases of nonparticipators.Conclusion: The study results confirm acceptable rates of recalls and referrals for further diagnosis and treatment, and ... |
format |
Article in Journal/Newspaper |
author |
Sigurdsson,Kristjan Ólafsdóttir,ElÃnborg |
author_facet |
Sigurdsson,Kristjan Ólafsdóttir,ElÃnborg |
author_sort |
Sigurdsson,Kristjan |
title |
Population-based service mammography screening: the Icelandic experience |
title_short |
Population-based service mammography screening: the Icelandic experience |
title_full |
Population-based service mammography screening: the Icelandic experience |
title_fullStr |
Population-based service mammography screening: the Icelandic experience |
title_full_unstemmed |
Population-based service mammography screening: the Icelandic experience |
title_sort |
population-based service mammography screening: the icelandic experience |
publisher |
Dove Press |
publishDate |
2013 |
url |
https://www.dovepress.com/population-based-service-mammography-screening-the-icelandic-experienc-peer-reviewed-fulltext-article-BCTT |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.2147/BCTT.S44671 https://www.dovepress.com/population-based-service-mammography-screening-the-icelandic-experienc-peer-reviewed-fulltext-article-BCTT |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.2147/BCTT.S44671 |
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Breast Cancer: Targets and Therapy |
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17 |
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1766042752185794560 |