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Type A behavior, hostility, and coronary atherosclerosis

R B Williams, T L Haney, K L Lee

    Psychosomatic Medicine
    |November 1, 1980
    PubMed
    Summary
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    Type A behavior pattern and high hostility scores are linked to increased coronary atherosclerosis. Hostility, specifically, showed a stronger association with significant artery blockages than Type A behavior alone.

    Area of Science:

    • Cardiology
    • Psychology
    • Behavioral Medicine

    Background:

    • Type A behavior pattern is a known risk factor for coronary heart disease.
    • Hostility, a personality trait, has also been implicated in cardiovascular disease.
    • Assessing these behavioral factors is crucial for understanding atherosclerosis development.

    Purpose of the Study:

    • To investigate the independent and combined associations of Type A behavior and hostility with coronary atherosclerosis.
    • To determine which behavioral factor, Type A or hostility, has a stronger relationship with significant arterial occlusion.

    Main Methods:

    • Utilized a structured interview to assess Type A behavior pattern.
    • Employed the Minnesota Multiphase Personality Inventory hostility subscale for hostility assessment.

    Related Experiment Videos

  • Analyzed data from 424 patients undergoing coronary arteriography for suspected coronary heart disease.

    • Main Results:

    • Type A patients showed a significantly higher proportion of severe arterial blockages (≥75% occlusion) compared to non-Type A patients.
    • Patients with hostility scores >10 had a 70% rate of significant occlusion, versus 48% for scores ≤10.
    • Multivariate analysis indicated both Type A behavior and hostility are independently related to atherosclerosis, with hostility showing a stronger association.

    Conclusions:

    • Findings confirm the link between Type A behavior and increased coronary atherosclerosis.
    • Hostility, characterized by negative attitudes towards others, is a significant independent predictor of atherosclerosis.
    • Interventions targeting anger and hostility reduction may be particularly effective in mitigating behavioral contributions to coronary disease risk.