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Preventable breast cancer is postmenopausal
- Source :
- Breast Cancer Research and Treatment, Breast Cancer Research and Treatment, Springer Verlag, 2010, 125 (1), pp.163-167. ⟨10.1007/s10549-010-0926-8⟩
- Publication Year :
- 2010
-
Abstract
- International audience; Breast cancer incidence has markedly increased in Western countries for reasons that are not entirely understood. We characterized periodic and age-specific incidence trends of breast cancer in immigrants who migrated from low incidence areas to Sweden. The incidence in immigrants was compared to that in native Swedes and standardized incidence ratios (SIRs) were calculated, based on the Swedish Family-Cancer Database. Age-specific incidence data for low and high incidence populations were obtained from Cancer Incidence in Five Continents IX and NORDCAN. For immigrants from the seven lowest countries/regions 535 breast cancers were identified; the SIRs ranging from 0.45 for Turkish to 0.70 for Greek women. The SIR increased somewhat with the length of stay in Sweden, from 0.55 for stay between 0 and 10 years to 0.59 for a stay of 20+ years. The age-specific incidence curves for these immigrants were superimposable upon the earliest Swedish (year 1960) or Danish (1943) rates. These rates differed from the current Swedish rates by a much lower postmenopausal component. Large incidence differences were also observed between white Californians and immigrants from China and Korea. Our results show that the main difference between high and low incidence areas is in postmenopausal cancer which has increased preferentially during the past century. Immigrants from low risk areas to Sweden show age-specific incidence patterns of Swedes half a century ago. These differences offer opportunities for the identification of factors underlying breast cancer etiology and tools for prevention.
- Subjects :
- Adult
Cancer Research
medicine.medical_specialty
Time Factors
Emigrants and Immigrants
Breast Neoplasms
Ethnic origin
Risk Assessment
White People
Danish
03 medical and health sciences
Young Adult
0302 clinical medicine
Breast cancer
Age Distribution
Asian People
Risk Factors
Epidemiology
Ethnic differences
medicine
Humans
030212 general & internal medicine
Environmental effect
Risk factor
Aged
Sweden
business.industry
Incidence (epidemiology)
Incidence
Incidence change
Age Factors
Cancer
Middle Aged
medicine.disease
language.human_language
3. Good health
Surgery
Postmenopause
Oncology
Databases as Topic
Age-incidence
030220 oncology & carcinogenesis
language
Female
Breast disease
business
Demography
Subjects
Details
- ISSN :
- 15737217 and 01676806
- Volume :
- 125
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Breast cancer research and treatment
- Accession number :
- edsair.doi.dedup.....046f1062f3ee98450cf465fde59a1e47