Major colorectal cancer aetiological hypotheses do not explain mortality trends among maori and non-maori New Zealanders

Allan H. Smith, Neil E. Pearce, Jill G Joseph

Research output: Contribution to journalArticle

37 Scopus citations

Abstract

Smith A H (Department of Biomedical and Environmental Health Sciences,School of Public Health, University of California, Berkelry, CA 94720, USA), Pearce N E and Joseph J G. Major colorectal cancer aetiological hypotheses do not explain mortality trends among Maori and non-Maori New Zealanders. International Journal of Epidemiology 1985, 14: 79-85.New Zealand colorectal cancer mortality rates are presented for the period 1947-1980. Mortality has been increasing and is now the highest in the world for both males and females in the age range 35-64; indeed New Zealand mortality rates for those aged 35-44 are approximately twice those of other countries with high mortality. By contrast, colorectal cancer mortality rates among Maoris, the indigenous New Zealanders of Polynesian descent, have been decreasing so that they are now less than half the non-Maori mortality rates. These findings cannot be explained by ethnic differences in consumption of the major proposed dietary risk factors: total fat, cholesterol, meat, fibre and beer. Possible differences in the prevalence of lactose malabsorption, in faecal mutagen activity, and in the prevalence of colorectal polyps warrant further investigation.

Original languageEnglish (US)
Pages (from-to)79-85
Number of pages7
JournalInternational Journal of Epidemiology
Volume14
Issue number1
DOIs
StatePublished - Mar 1985
Externally publishedYes

ASJC Scopus subject areas

  • Statistics, Probability and Uncertainty
  • Applied Mathematics
  • Physiology (medical)
  • Reproductive Medicine
  • Obstetrics and Gynecology
  • Epidemiology

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