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Aging of the population may not lead to an increase in the numbers of acute coronary events: a community surveillance study and modelled forecast of the future
  1. Veikko Salomaa1,
  2. Aki S Havulinna1,
  3. Heli Koukkunen2,
  4. Päivi Kärjä-Koskenkari3,
  5. Arto Pietilä1,
  6. Juha Mustonen4,
  7. Matti Ketonen4,
  8. Aapo Lehtonen5,
  9. Pirjo Immonen-Räihä6,
  10. Seppo Lehto2,
  11. Juhani Airaksinen6,
  12. Y Antero Kesäniemi7
  1. 1Department of Chronic Disease Prevention, THL-National Institute for Health and Welfare, Helsinki, Finland
  2. 2Kuopio University Hospital, Kuopio, Finland
  3. 3Oulu University Hospital, Oulu, Finland
  4. 4Central Hospital of North Karelia, Joensuu, Finland
  5. 5Turku City Hospital, Turku, Finland
  6. 6Heart Center, Turku University Hospital, Turku, Finland
  7. 7Clinical Research Center and Department of Medicine, Oulu University Hospital and Institute of Clinical Medicine, University of Oulu, Oulu, Finland
  1. Correspondence to Dr Veikko Salomaa, Department of Chronic Disease Prevention, THL-National Institute for Health and Welfare, PO Box 30, Helsinki FI-00271, Finland; veikko.salomaa{at}thl.fi

Abstract

Objective To examine the incidence, mortality and case fatality of acute coronary syndrome (ACS) in Finland during 1993–2007 and to create forecasts of the absolute numbers of ACS cases in the future, taking into account the aging of the population.

Design Community surveillance study and modelled forecasts of the future.

Setting and methods Two sets of population-based coronary event register data from Finland (FINAMI and the National Cardiovascular Disease Register (CVDR)). Bayesian age–period–cohort (APC) modelling.

Participants 24 905 observed ACS events in the FINAMI register and 364 137 in CVDR.

Main outcome measures Observed trends of ACS events during 1993–2007, forecasted numbers of ACS cases, and the prevalence of ACS survivors until the year 2050.

Results In the FINAMI register, the average annual declines in age-standardised incidence of ACS were 1.6% (p<0.001) in men and 1.8% (p<0.001) in women. For 28-day case fatality of incident ACS, the average annual declines were 4.1% (p<0.001) in men and 6.7% (p<0.001) in women. Findings in the country-wide CVDR data were consistent with the FINAMI register. The APC model, based on the CVDR data, suggested that both the absolute numbers of ACS events and the prevalence of ACS survivors reached their peak in Finland around 1990, have declined since then, and very likely will continue to decline until 2050.

Conclusions The ACS event rates and absolute numbers of cases have declined steeply in Finland. The declining trends are likely to continue in the future despite the aging of the population.

  • CORONARY ARTERY DISEASE

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