ArticleThe oncologist2011
Does the breast cancer age at diagnosis differ by ethnicity? A study on immigrants to Sweden.
Article in The oncologist, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 43 citations in OpenAlex.
- Epidemiology and Clinical Features of Breast Cancer in Cotonou (2014-2019): Insights from a Population-Based Registry Study.Annals of surgical oncology · 2026Article
- Cancer in migrant populations: evidence from a regional oncology network.BMC public health · 2026Article
- Prognostic factors and overall survival of breast cancer in Benin: a hospital-based study.BMC women's health · 2024Article
- Cancer in Migrants: A Population-Based Study in Italy.Cancers · 2023Article
- First Prospective Cross-Sectional Study on the Impact of Immigration Background and Education in Early Detection of Breast Cancer.Breast care (Basel, Switzerland) · 2021Article
- Trends in breast cancer incidence in Ho Chi Minh City 1996-2015: A registry-based study.PloS one · 2021Article
- Premenopausal Breast Cancer Risk Factors and Associations with Molecular Subtypes: A Case-Control Study.International journal of breast cancer · 2021Article
- Determinants of breast cancer in Saudi women from Makkah region: a case-control study (breast cancer risk factors among Saudi women).BMC public health · 2019Article
- Multicenter cross-sectional screening of theOncology letters · 2018Article
- Rising global burden of breast cancer: the case of sub-Saharan Africa (with emphasis on Nigeria) and implications for regional development: a review.World journal of surgical oncology · 2018Review
- Cancer risk in different generations of Middle Eastern immigrants to California, 1988-2013.International journal of cancer · 2017Article
- Breast Cancer Challenges and Screening in China: Lessons From Current Registry Data and Population Screening Studies.The oncologist · 2015Article
- Female breast cancer incidence among Asian and Western populations: more similar than expected.Journal of the National Cancer Institute · 2015Article
- Hispano-Americans in Europe: what do we know about their health status and determinants? A scoping review.BMC public health · 2015Article
- Epidemiologic and Clinical Profiles of Breast Diseases in Niger.International journal of cancer and oncology · 2015Article
- Baseline staging tests based on molecular subtype is necessary for newly diagnosed breast cancer.Journal of experimental & clinical cancer research : CR · 2014Article
- Triple-negative breast cancer risk in women is defined by the defect of estrogen signaling: preventive and therapeutic implications.OncoTargets and therapy · 2014Article
- Incidence of Epstein-Barr Virus Among Women With Breast Cancer Using Monoclonal Antibodies for Latent Membrane Protein 1 (LMP1).In vivo (Athens, Greece)Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAge-specific incidence rates for breast cancer in low-risk and high-risk ethnic populations differ by age at which the incidence maximum is reached: around 50 years in low-risk populations and over 60 years in high-risk populations. The interpretation of these differences remains unsettled, one line primarily referring to biological differences, the second one to cohort effects of rapidly increasing rates in young populations, and the third one to incomplete registration of cancer in the elderly.
methodsThe nationwide Family-Cancer Database was used to analyze standardized incidence ratios (SIRs) and age at diagnosis of breast cancer in female immigrants to Sweden by their region of origin compared with women native to Sweden matched on birth year and other relevant factors.
resultsWe showed first that the SIRs for breast cancer were lower in many immigrant groups compared with natives of Sweden; women from Turkey had the lowest SIR of 0.45, followed by those from Chile (0.54) and Southeast Asia (0.57). Women from nine regions showed an earlier mean age at diagnosis than their matched Swedish controls, the largest differences being 5.5 years for women from Turkey, 5.1 years for those from Asian Arab and "Other African" countries, 4.3 years for those from Iran, and 4.0 years for those from Iraq.
conclusionsThe results show that in many immigrant groups, the diagnostic age is earlier (<50 years) than in natives of Sweden (>50 years), suggesting that true biological factors underlie the differences. These factors may explain much of the international variation in breast cancer incidence. Identifying these factors should advance understanding of breast cancer etiology and prevention.
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