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Type A behavior, self-involvement, and coronary atherosclerosis.

L Scherwitz, R McKelvain, C Laman

    Psychosomatic Medicine
    |March 1, 1983
    PubMed
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    Type A behavior did not predict coronary artery disease (CAD) severity in men. However, increased self-references in speech correlated with more heart attacks and extent of CAD.

    Area of Science:

    • Cardiology
    • Psychology
    • Behavioral Medicine

    Background:

    • Type A behavior has been investigated as a risk factor for coronary artery disease (CAD).
    • Previous research suggests a link between psychological factors and cardiovascular health.

    Purpose of the Study:

    • To investigate the relationship between Type A behavior and the extent of coronary artery disease (CAD).
    • To explore other speech-derived behavioral correlates of CAD severity.

    Main Methods:

    • 150 men underwent assessment for Type A behavior using structured interviews and questionnaires prior to coronary angiography.
    • Speech samples from the structured interview were analyzed for the frequency of self-references (I, me, my).
    • Correlations were examined between Type A behavior, self-references, and measures of CAD extent, myocardial infarction history, treadmill time, and catheterization ejection fraction.

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    Main Results:

    • No significant relationship was found between Type A behavior and the extent of CAD.
    • The number of self-references in speech positively correlated with the number of previous myocardial infarctions and the extent of CAD.
    • Self-references negatively correlated with treadmill exercise duration and catheterization-derived ejection fraction, remaining significant after controlling for age, blood pressure, cholesterol, and Type A behavior.

    Conclusions:

    • Type A behavior, as measured, is not a significant correlate of coronary artery disease extent in this cohort.
    • Speech-derived self-references may serve as a potential behavioral marker associated with cardiovascular disease severity and history.