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Related Experiment Videos

Type A behaviour and coronary atherosclerosis.

P Langeluddecke1, G Fulcher, M Jones

  • 1Department of Psychiatry, Royal North Shore Hospital, St. Leonards N.S.W., Australia.

Journal of Psychosomatic Research
|January 1, 1988
PubMed
Summary
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This study found no significant link between Type A behavior pattern and coronary atherosclerosis in 519 patients. Even after considering other factors, Type A behavior was not identified as a risk for this heart condition.

Area of Science:

  • Cardiology
  • Behavioral Medicine
  • Epidemiology

Background:

  • The Type A behavior pattern, characterized by competitiveness and hostility, has been historically linked to increased risk of coronary heart disease.
  • However, empirical evidence supporting this association, particularly concerning the severity of coronary atherosclerosis, remains debated.

Purpose of the Study:

  • To investigate the relationship between the Type A behavior pattern and the presence and severity of coronary atherosclerosis.
  • To determine if Type A behavior is an independent risk factor for coronary atherosclerosis in patients undergoing coronary angiography.

Main Methods:

  • A sample of 519 patients undergoing coronary angiography was assessed.
  • Type A behavior was measured using the Structured Interview and the Framingham questionnaire.

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  • Coronary atherosclerosis severity was quantified using a composite coronary occlusion index and the number of diseased coronary vessels.

    • Main Results:

    • Univariate and subgroup analyses (males in white-collar jobs, patients with significant disease) revealed no significant association between Type A behavior and coronary atherosclerosis severity.
    • Multivariate analysis identified sex, cholesterol levels, and age as significant risk factors for atherosclerosis.
    • Type A behavior pattern did not emerge as a significant risk factor in the multivariate model.

    Conclusions:

    • The findings do not support a significant relationship between the Type A behavior pattern and coronary atherosclerosis in this patient cohort.
    • Established risk factors like age, cholesterol, and sex remain primary determinants of atherosclerosis.
    • Further research may be needed to explore potential nuances or alternative behavioral factors influencing cardiovascular health.