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. 1981 Nov 1;125(9):981–992.

Cardiovascular disease mortality in Canada.

E S Nicholls, J Jung, J W Davies
PMCID: PMC1862487  PMID: 7332895

Abstract

During the past two decades approximately one half of all deaths in Canada were due to cardiovascular diseases. Ischemic heart disease and cerebrovascular disease caused more than 60% and 20% of those deaths respectively. The mortality rates for ischemic heart disease in males increased slightly until 1965 and then dropped substantially, whereas the rates for females, which were declining at least since the early 1960s, accelerated in their decline. As a consequence, the rates for males remain almost twice as high as those for females. The reductions were initially observed in males 25 to 34 years old and in all age groups of females, but became apparent in a wider range of ages in the second period reviewed (1969 through 1977). The mortality of cerebrovascular disease has gradually diminished for both sexes since the 1950s, but the decline has been more pronounced among females, who originally had the higher rate. Marked geographic differences in mortality rates still exist in Canada despite the decline in death rates for both ischemic heart disease and cerebrovascular disease in all regions of the country. Surprising regional differences in times of onset of these declines have been demonstrated. For ischemic heart disease Ontario maintains the highest and the Prairies the lowest mortality rates. Quebec, despite a sustained decline, still ranks third, while the Pacific region shows the second-lowest rates in the country. The Atlantic region showed the lowest rates of decline in the period reviewed. The reduction in the mortality of ischemic heart disease in Canada (16.4% between 1969 and 1977) must be considered real for a variety of reasons. Direct evidence is not available to elucidate whether the reduction is the consequence of reduced incidence, increased survival or a combination of the two factors. The potential role of various factors that may have contributed to this decline is briefly discussed in this article.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Badley E. M., Thompson R. P., Wood P. H. The prevalence and severity of major disabling conditions--a reappraisal of the government social survey on the handicapped and impaired in Great Britain. Int J Epidemiol. 1978 Jun;7(2):145–151. doi: 10.1093/ije/7.2.145. [DOI] [PubMed] [Google Scholar]
  2. Cooper R., Stamler J., Dyer A., Garside D. The decline in mortality from coronary heart disease, U.S.A., 1968--1975. J Chronic Dis. 1978;31(12):709–720. doi: 10.1016/0021-9681(78)90055-3. [DOI] [PubMed] [Google Scholar]
  3. Fabsitz R., Feinleib M. Geographic patterns in county mortality rates from cardiovascular diseases. Am J Epidemiol. 1980 Mar;111(3):315–328. doi: 10.1093/oxfordjournals.aje.a112903. [DOI] [PubMed] [Google Scholar]
  4. Gordon T., Thom T. The recent decrease in CHD mortality. Prev Med. 1975 Jun;4(2):115–125. doi: 10.1016/0091-7435(75)90077-8. [DOI] [PubMed] [Google Scholar]
  5. Hultgren H. N., Takaro T., Detre K. M., Murphy M. L. Aortocoronary-artery--bypass assessment after 13 years. JAMA. 1978 Sep 22;240(13):1353–1354. [PubMed] [Google Scholar]
  6. Marmot M. G., Adelstein A. M., Robinson N., Rose G. A. Changing social-class distribution of heart disease. Br Med J. 1978 Oct 21;2(6145):1109–1112. doi: 10.1136/bmj.2.6145.1109. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. McIntosh H. D., Garcia J. A. The first decade of aortocoronary bypass grafting, 1967-1977. A review. Circulation. 1978 Mar;57(3):405–431. doi: 10.1161/01.cir.57.3.405. [DOI] [PubMed] [Google Scholar]
  8. Milliken J. A., Rautaharju P. M. Prevention of cardiovascular disease: an urgent Canadian problem. Can Med Assoc J. 1976 Feb 7;114(3):185–186. [PMC free article] [PubMed] [Google Scholar]
  9. Morrison A. S. Sequential pathogenic components of rates. Am J Epidemiol. 1979 Jun;109(6):709–718. doi: 10.1093/oxfordjournals.aje.a112734. [DOI] [PubMed] [Google Scholar]
  10. Peacocke J. E. The epidemiology of influenza in Canada, 1977-78. Can J Public Health. 1979 Sep-Oct;70(5):321–328. [PubMed] [Google Scholar]
  11. Stern M. P. The recent decline in ischemic heart disease mortality. Ann Intern Med. 1979 Oct;91(4):630–640. doi: 10.7326/0003-4819-91-4-630. [DOI] [PubMed] [Google Scholar]
  12. Webster A. C. Evolution of emergency cardiac care in Canada. Can Med Assoc J. 1977 Dec 17;117(12):1383–1386. [PMC free article] [PubMed] [Google Scholar]
  13. West R. R. Geographical variation mortality from ischaemic heart disease in England and Wales. Br J Prev Soc Med. 1977 Dec;31(4):245–250. doi: 10.1136/jech.31.4.245. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. du V Florey C., Melia R. J., Darby S. C. Changing mortality from ischaemic heart disease in Great Britain 1968-76. Br Med J. 1978 Mar 11;1(6113):635–637. doi: 10.1136/bmj.1.6113.635. [DOI] [PMC free article] [PubMed] [Google Scholar]

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