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Canadian Journal of Public Health

, Volume 95, Issue 1, pp 16–20 | Cite as

Overweight and Obesity Mortality Trends in Canada, 1985–2000

  • Peter T. Katzmarzyk
  • Christopher I. Ardern
Article

Abstract

Objectives

To investigate the temporal trends in the mortality burden attributed to overweight and obesity in Canada between 1985 and 2000.

Design

Overweight and obesity prevalence data from six cross-sectional national population surveys, including the 1985 and 1990 Health Promotion Surveys, 1994, 1996 and 1998 National Population Health Surveys, and 2000 Canadian Community Health Survey, in conjunction with one published prospective cohort study on overweight, obesity and mortality.

Participants

Adults 20–64 years of age.

Main Outcome Measure

The number of deaths attributable to overweight and obesity at the national and provincial levels. Attributable deaths were estimated using the Population Attributable Risk (PAR), which combined the prevalence data with the relative risks of mortality associated with overweight and obesity. A two-way sensitivity analysis was conducted by simultaneously varying the population prevalences and relative risk estimates by ±10%.

Results

Between 1985 and 2000, the national PAR for overweight and obesity increased from 5.1% to 9.3%, and the annual number of deaths attributable to overweight and obesity increased from 2,514 (966–4,061) to 4,321 (2,114–6,542). Cumulatively, 57,181 (25,075–89,227) deaths were attributed to overweight and obesity between 1985 and 2000. Although overweight- and obesity-related mortality is increasing in every province, the problem is particularly pronounced in Eastern Canada.

Conclusions

Overweight and obesity are important public health problems in Canada, accounting for approximately 57,000 deaths over the last 15 years. Immediate and sweeping public health campaigns and interventions are required to slow or reverse the recent trends.

Résumé

Objectifs

Analyser les tendances temporelles du fardeau que l’embonpoint et l’obésité ont fait peser sur les chiffres de la mortalité au Canada entre 1985 et 2000.

Conception

Les données sur la prévalence de l’embonpoint et de l’obésité proviennent de six enquêtes transversales nationales sur la population, à savoir: l’Enquête promotion santé (1985 et 1990), l’Enquête nationale sur la santé de la population (1994, 1996 et 1998) et l’Enquête sur la santé dans les collectivités canadiennes (2000), ainsi que d’une étude prospective de cohortes, publiée, portant sur l’embonpoint, l’obésité et la mortalité.

Participants

Des adultes de 20 à 64 ans.

Principal indicateur des résultats

Le nombre de décès attribuables à l’embonpoint et à l’obésité à l’échelle nationale et provinciale. Les décès attribuables ont été estimés selon la méthode de la fraction étiologique du risque, en combinant les données sur la prévalence aux risques relatifs de mortalité associés à l’embonpoint et à l’obésité. Nous avons mené une analyse de sensibilité bidirectionnelle en modifiant simultanément de ±10% les taux de prévalence dans la population et les estimations du risque relatif.

Résultats

Entre 1985 et 2000, la fraction étiologique du risque d’embonpoint et d’obésité à l’échelle nationale est passée de 5,1% à 9,3%, et le nombre annuel de décès attribuables à l’embonpoint et à l’obésité, de 2 514 (966–4 061) à 4 321 (2 114–6 542). Au total, 57 181 décès (25 075–89 227) ont été attribués à l’embonpoint et à l’obésité entre 1985 et 2000. Bien que la mortalité liée à l’embonpoint et à l’obésité soit en hausse dans toutes les provinces, le problème est particulièrement grave dans l’est du Canada.

Conclusions

L’embonpoint et l’obésité sont d’importants problèmes de santé publique au Canada et ont causé quelque 57 000 décès au cours des 15 dernières années. Des campagnes de santé publique et des mesures d’intervention immédiates et radicales sont nécessaires pour ralentir ou inverser les tendances récentes.

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References

  1. 1.
    Tremblay MS, Katzmarzyk PT, Willms JD. Temporal trends in overweight and obesity in Canada, 1981–1996. Int J Obes Relat Metab Disord 2002:26:538–43.CrossRefPubMedGoogle Scholar
  2. 2.
    Torrance GM, Hooper MD, Reeder BA. Trends in overweight and obesity among adults in Canada (1970–1992): Evidence from national surveys using measured height and weight. Int J Obes Relat Metab Disord 2002:26:797–804.CrossRefPubMedGoogle Scholar
  3. 3.
    Katzmarzyk PT. The Canadian obesity epidemic, 1985–1998. CMAJ 2002:166:1039–40.PubMedPubMedCentralGoogle Scholar
  4. 4.
    Flegal KM, Carroll MD, Ogden CL, Johnson CL. Prevalence and trends in obesity among US adults, 1999–2000. JAMA 2002:288:1723–27.CrossRefGoogle Scholar
  5. 5.
    Seidell JC. Obesity in Europe: Scaling an epidemic. Int J Obes Relat Metab Disord 1995;19 Suppl 3:S1–S4.PubMedGoogle Scholar
  6. 6.
    NIH. Clinical guidelines on the identification, evaluation, and treatment of overweight and obesity in adults–The evidence report. Obes Res 1998;6(Suppl.2):51S–209S [published erratum appears in Obes Res 1998;Nov 6(6):464].Google Scholar
  7. 7.
    Birmingham CL, Muller JL, Palepu A, Spinelli JJ, Anis AH. The cost of obesity in Canada. CMAJ 1999:160:483–88.PubMedPubMedCentralGoogle Scholar
  8. 8.
    Calle EE, Thun MJ, Petrelli JM, Rodriguez C, Heath CW, Jr. Body-mass index and mortality in a prospective cohort of U.S. adults. N Engl J Med 1999:341:1097–105.CrossRefPubMedGoogle Scholar
  9. 9.
    Katzmarzyk PT, Craig CL, Bouchard C. Underweight, overweight and obesity: Relationships with mortality in the 13-year follow-up of the Canada Fitness Survey. J Clin Epidemiol 2001:54:916–20.CrossRefPubMedGoogle Scholar
  10. 10.
    Allison DB, Fontaine KR, Manson JE, Stevens J, VanItallie TB. Annual deaths attributable to obesity in the United States. JAMA 1999:282:1530–38.CrossRefPubMedGoogle Scholar
  11. 11.
    World Health Organization. Obesity: Preventing and Managing the Global Epidemic. Report of a WHO Consultation on Obesity, Geneva, 3–5 June. Geneva: World Health Organization, 1998.Google Scholar
  12. 12.
    Rothman KJ. Modern Epidemiology. Boston, MA: Little, Brown and Company, 1986.Google Scholar
  13. 13.
    Rockhill B, Newman B, Weinberg C. Use and misuse of population attributable fractions. Am J Public Health 1998:88:15–19.CrossRefPubMedPubMedCentralGoogle Scholar
  14. 14.
    Stephens T, Graham DF (Eds.). Canada’s Health Promotion Survey 1990: Technical Report. Ottawa, ON: Health and Welfare Canada, 1993.Google Scholar
  15. 15.
    Rootman I, Warren R, Stephens T, Peters L (Eds.). Canada’s Health Promotion Survey: Technical Report. Ottawa, ON: Health and Welfare Canada, 1988.Google Scholar
  16. 16.
    Statistics Canada. 1994–95 NPHS Public Use Microdata Documentation. Ottawa, ON: Statistics Canada (Available at: https://doi.org/prod.library.utoronto.ca/datalib/codebooks/ cstdli/nphs/1994_r/nphs.pdf).
  17. 17.
    Statistics Canada. 1998–99 NPHS Public Use Microdata Documentation. Ottawa, ON: Statistics Canada (Available at: https://doi.org/info.library.yorku.ca/depts/lds/docs/nphs/nphs9899guide-all.pdf).
  18. 18.
    Statistics Canada. 1996–97 NPHS Public Use Microdata Documentation. Ottawa, ON: Statistics Canada (Available at: https://doi.org/prod.library.utoronto.ca/datalib/codebooks/cstdli/nphs/1997/engdoc.pdf).
  19. 19.
    Statistics Canada. Health Indicators, May 2002. Catalogue No. 82-221-XIE, 2002.Google Scholar
  20. 20.
    Statistics Canada. Canadian Socio-economic Information Management System (CANSIM II). Accessed at University of Toronto (https://doi.org/dc1.chass.utoronto.ca/cansim/cansim.htm 1, Sept 19, 2002), 2002.Google Scholar
  21. 21.
    Katzmarzyk PT, Janssen I, Ardern CI. Physical activity, adiposity and mortality. Obes Rev In Press.Google Scholar
  22. 22.
    Rowland ML. Self-reported weight and height. Am J Clin Nutr 1990:52:1125–33.CrossRefPubMedGoogle Scholar
  23. 23.
    Palta M, Prineas RJ, Berman R, Hannan P. Comparison of self-reported and measured height and weight. Am J Epidemiol 1982:115:223–30.CrossRefPubMedGoogle Scholar
  24. 24.
    Mokdad AH, Bowman BA, Ford ES, Vinicor F, Marks JS, Koplan JP. The continuing epidemics of obesity and diabetes in the United States. JAMA 2001:286:1195–200.CrossRefPubMedGoogle Scholar

Copyright information

© The Canadian Public Health Association 2004

Authors and Affiliations

  1. 1.School of Physical and Health EducationQueen’s UniversityKingstonCanada
  2. 2.Department of Community Health and EpidemiologyQueen’s UniversityKingstonCanada

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