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Related Experiment Videos

Cancer in migrants to Argentina.

E L Matos1, M Khlat, D I Loria

  • 1Instituto de Oncologia Angel H. Roffo, Facultad de Medicina, Buenos Aires, Argentina.

International Journal of Cancer
|December 2, 1991
PubMed
Summary

Migrant cancer mortality in Argentina shows significant shifts. Gastric cancer risk decreases, while colon and breast cancer risks converge with the local population, suggesting environmental influences.

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Area of Science:

  • Epidemiology
  • Cancer Research
  • Migration Studies

Background:

  • Cancer mortality rates vary significantly between countries of origin and host nations.
  • Understanding how migration affects cancer risk is crucial for public health.
  • Argentina hosts a diverse migrant population with varied origins.

Purpose of the Study:

  • To compare cancer mortality rates among migrants in Argentina with native-born Argentinians and populations in their countries of origin.
  • To investigate the impact of migration on the risk of specific cancers, including gastric, esophageal, colon, and breast cancer.
  • To identify potential environmental factors influencing cancer risk in migrant populations.

Main Methods:

  • Comparative mortality analysis using data from migrants in Argentina and their countries of origin.

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  • Stratification of migrants by country/group of origin (11 individual, 6 groups).
  • Comparison of cancer-specific mortality rates (gastric, esophageal, colon, breast) between migrant groups, Argentina-born, and origin populations.

    • Main Results:

    • Migrants generally had higher gastric cancer mortality than Argentina-born, but risk declined post-migration, especially for Europeans.
    • European migrants showed significantly lower esophageal cancer mortality compared to Argentina-born.
    • Colon and breast cancer mortality rates were lower in most migrant groups than in Argentina-born, with risk converging over time.

    Conclusions:

    • Migration to Argentina is associated with substantial alterations in cancer risk profiles.
    • Environmental exposures, likely including dietary changes, play a significant role in modifying cancer risk during a migrant's lifespan.
    • These findings highlight the importance of considering environmental factors in cancer prevention and health strategies for migrant populations.