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Cervical, endometrial and ovarian cancers among immigrants in Sweden: importance of age at migration and duration of residence.

https://arctichealth.org/en/permalink/ahliterature91803
Source
Eur J Cancer. 2009 Jan;45(1):107-18
Publication Type
Article
Date
Jan-2009
Author
Beiki Omid
Allebeck Peter
Nordqvist Tobias
Moradi Tahereh
Author Affiliation
Department of Public Health Sciences, Division of Social Medicine/Epidemiology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden. Kermanshah University of Medical Sciences, Kermanshah, Iran. omid.beiki@ki.se
Source
Eur J Cancer. 2009 Jan;45(1):107-18
Date
Jan-2009
Language
English
Publication Type
Article
Keywords
Adolescent
Adult
Africa - ethnology
Age Distribution
Aged
Bosnia-Herzegovina - ethnology
Child
Cohort Studies
Confidence Intervals
Emigrants and Immigrants
Endometrial Neoplasms - epidemiology
Europe, Eastern - ethnology
Female
Finland - ethnology
Humans
Incidence
Iran - ethnology
Iraq - ethnology
Middle Aged
Ovarian Neoplasms - epidemiology
Poland - ethnology
Registries
Risk
Risk assessment
Sweden - epidemiology
Time Factors
Uterine Cervical Neoplasms - epidemiology
Abstract
In order to compare the risk of gynaecologic cancer among foreign-born women to the risk among those born in Sweden and to elucidate risk of cancer in relation to age at migration and duration of residence, we followed a cohort of 5.3 million women between 1969 and 2004 in Sweden. Through linkage with the national cancer register, we estimated cancer risk as rate ratios (RRs) with 95% confidence intervals (CIs) using Poisson regression. We reported RRs adjusted for age, calendar year of follow-up and years of education. Overall, 18,247 cases of cervical, 35,290 cases of endometrial and 32,227 cases of ovarian cancers occurred during 117 million person-years of follow-up. We found that adjusted RRs of all the three cancers were lower or the same among foreign-born women compared to those born in Sweden. As for cervical cancer, women aged 35-49 years born in Poland and Bosnia and women aged 50 years or more born in South America showed an increased risk, which was related to increasing age at migration. The risk was lowest among women born in Iran, Iraq, Organisation for Economic Cooperation & Development (OECD) and Finland, and highest among women born in Bosnia and Eastern Europe during their first 5 years since immigration. RRs for endometrial and ovarian cancers did not vary by duration of residence or by age at migration. Health care providers should be aware of the higher risk of cervical cancer among immigrants from high-risk areas, especially among those who immigrate at older ages. On the other hand, protective factors for ovarian and endometrial cancers seem to be retained upon migration.
PubMed ID
18829301 View in PubMed
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