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Cancer incidence among Iranian immigrants in Sweden and Iranian residents compared to the native Swedish population

Mousavi, Seyed Mohsen; Brandt, Andreas; Weires, Marianne; Ji, Jianguang LU ; Sundquist, Jan LU and Hemminki, Kari LU (2010) In European Journal of Cancer 46(3). p.599-605
Abstract
Background and goals: Comparing cancer incidence by migrant studies is one of the main approaches to generate hypotheses on the aetiology of cancer. Immigrant studies are most informative when cancer incidence data are available from both the Source and the host country. Methods: The age standardised incidence rate (ASR) and standardised incidence ratio (SIR) of cancers among the Iranian immigrants were compared to the native Swedish population as the standard population by using the Swedish Family-Cancer Database (FCD) from 1958 to 2006. We also compared SIRs between Iranian immigrants and Iranian residents for whom the data were derived from the Iranian national cancer registry report of 2006. Results: Among the 65,501 Iranian... (More)
Background and goals: Comparing cancer incidence by migrant studies is one of the main approaches to generate hypotheses on the aetiology of cancer. Immigrant studies are most informative when cancer incidence data are available from both the Source and the host country. Methods: The age standardised incidence rate (ASR) and standardised incidence ratio (SIR) of cancers among the Iranian immigrants were compared to the native Swedish population as the standard population by using the Swedish Family-Cancer Database (FCD) from 1958 to 2006. We also compared SIRs between Iranian immigrants and Iranian residents for whom the data were derived from the Iranian national cancer registry report of 2006. Results: Among the 65,501 Iranian immigrants, the median age at immigration was 26 years and the median length of stay was 16 years. Their all-cancer ASR was 175.3 and 153.1 per 100,000 person years for males and females, respectively, during the period from 1996 to 2006, higher than for the Iranian residents. The ASRs increased among the male Iranian immigrants during the past two decades but were stable among females. The risk for all-cancers among Iranian immigrants was lower than that for the native Swedish population. The Iranian immigrants had a significantly increased risk for male urinary bladder (SIR = 1.40) and thyroid cancers (2.64) compared to the Swedes. Conclusion: The reasons for the decreased risk for all-cancers among the Iranian immigrants remain to be established. The ASR difference between the Iranian immigrants and the Iranian residents may be due to the differences between the registry systems, selected immigrant groups and environmental exposures. (C) 2009 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Risk, Cancer, Incidence, Immigration
in
European Journal of Cancer
volume
46
issue
3
pages
599 - 605
publisher
IFAC & Elsevier Ltd.
external identifiers
  • wos:000275594400030
  • scopus:75149176676
ISSN
1879-0852
DOI
10.1016/j.ejca.2009.10.009
language
English
LU publication?
yes
id
3b0d2d07-7b71-40b9-b1f8-b2a0025daf4f (old id 1589025)
date added to LUP
2010-04-20 14:12:43
date last changed
2018-05-29 12:12:31
@article{3b0d2d07-7b71-40b9-b1f8-b2a0025daf4f,
  abstract     = {Background and goals: Comparing cancer incidence by migrant studies is one of the main approaches to generate hypotheses on the aetiology of cancer. Immigrant studies are most informative when cancer incidence data are available from both the Source and the host country. Methods: The age standardised incidence rate (ASR) and standardised incidence ratio (SIR) of cancers among the Iranian immigrants were compared to the native Swedish population as the standard population by using the Swedish Family-Cancer Database (FCD) from 1958 to 2006. We also compared SIRs between Iranian immigrants and Iranian residents for whom the data were derived from the Iranian national cancer registry report of 2006. Results: Among the 65,501 Iranian immigrants, the median age at immigration was 26 years and the median length of stay was 16 years. Their all-cancer ASR was 175.3 and 153.1 per 100,000 person years for males and females, respectively, during the period from 1996 to 2006, higher than for the Iranian residents. The ASRs increased among the male Iranian immigrants during the past two decades but were stable among females. The risk for all-cancers among Iranian immigrants was lower than that for the native Swedish population. The Iranian immigrants had a significantly increased risk for male urinary bladder (SIR = 1.40) and thyroid cancers (2.64) compared to the Swedes. Conclusion: The reasons for the decreased risk for all-cancers among the Iranian immigrants remain to be established. The ASR difference between the Iranian immigrants and the Iranian residents may be due to the differences between the registry systems, selected immigrant groups and environmental exposures. (C) 2009 Elsevier Ltd. All rights reserved.},
  author       = {Mousavi, Seyed Mohsen and Brandt, Andreas and Weires, Marianne and Ji, Jianguang and Sundquist, Jan and Hemminki, Kari},
  issn         = {1879-0852},
  keyword      = {Risk,Cancer,Incidence,Immigration},
  language     = {eng},
  number       = {3},
  pages        = {599--605},
  publisher    = {IFAC & Elsevier Ltd.},
  series       = {European Journal of Cancer},
  title        = {Cancer incidence among Iranian immigrants in Sweden and Iranian residents compared to the native Swedish population},
  url          = {http://dx.doi.org/10.1016/j.ejca.2009.10.009},
  volume       = {46},
  year         = {2010},
}