Cancer Causes & Control

, Volume 23, Issue 7, pp 1047–1053

Breast cancer incidence in Mongolia

  • Rebecca Troisi
  • Dalkhjav Altantsetseg
  • Ganmaa Davaasambuu
  • Janet Rich-Edwards
  • Dambadarjaa Davaalkham
  • Steinar Tretli
  • Robert N. Hoover
  • A. Lindsay Frazier
Original paper

DOI: 10.1007/s10552-012-9973-2

Cite this article as:
Troisi, R., Altantsetseg, D., Davaasambuu, G. et al. Cancer Causes Control (2012) 23: 1047. doi:10.1007/s10552-012-9973-2

Abstract

Purpose

Data on international variation in breast cancer incidence may help to identify additional risk factors. Substantially lower breast cancer rates in Asia than in North America and Western Europe are established, but differences within Asia have been largely ignored despite heterogeneity in lifestyles and environments. Mongolia’s breast cancer experience is of interest because of its shared genetics but vastly different diet compared with other parts of Asia.

Methods

Age-standardized breast cancer incidence and mortality rates obtained from the International Association of Cancer Registries are presented for several Asian countries. Mongolian incidence rates obtained from its cancer registry describe incidence within the country.

Results

Breast cancer incidence in Mongolia (age standardized 8.0/100,000) is almost a third of rates in China (21.6/100,000), and over five times that of Japan (42.7/100,000) and Russia (43.2/100,000). Rates within Mongolia appear to have increased slightly over the last decade and are higher in urban than rural areas (annual percentage increase of age-standardized rates from 1998 to 2005 was 3.60 and 2.57 %, respectively). The increase in breast cancer incidence with age plateaus at menopause, as in other Asian populations.

Conclusions

Mongolia’s low breast cancer incidence is of particular interest because of their unusual diet (primarily red meat and dairy) compared with other Asian countries. More intensive study of potential dietary, reproductive and lifestyle factors in Mongolia with comparison to other Asian populations may provide more clarity in what drives the international breast cancer rate differences.

Keywords

Mongolia Breast cancer Urban–rural Asia International 

Supplementary material

10552_2012_9973_MOESM1_ESM.docx (19 kb)
Supplementary material 1 (DOCX 19 kb)

Copyright information

© Springer Science+Business Media B.V. (outside the USA)  2012

Authors and Affiliations

  • Rebecca Troisi
    • 1
    • 9
  • Dalkhjav Altantsetseg
    • 2
  • Ganmaa Davaasambuu
    • 3
  • Janet Rich-Edwards
    • 4
  • Dambadarjaa Davaalkham
    • 5
  • Steinar Tretli
    • 6
  • Robert N. Hoover
    • 1
  • A. Lindsay Frazier
    • 7
    • 8
  1. 1.Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human ServicesBethesdaUSA
  2. 2.Mongolian National Oncology CenterUlaanbaatorMongolia
  3. 3.Department of NutritionHarvard School of Public HealthBostonUSA
  4. 4.Connors Center for Women’s Health and Gender BiologyBrigham and Women’s HospitalBostonUSA
  5. 5.Health Sciences University of MongoliaUlaanbaatorMongolia
  6. 6.Cancer Registry of NorwayOsloNorway
  7. 7.Department of PediatricsHarvard Medical SchoolBostonUSA
  8. 8.Dana Farber Cancer InstituteBostonUSA
  9. 9.Dartmouth-Hitchcock Medical CenterLebanonUSA

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