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Related Experiment Videos

Coronary risk factor intervention: characteristics associated with change

E D Eaker, R C Benfari, R B Reed

    Journal of Clinical Psychology
    |October 1, 1982
    PubMed
    Summary

    Group sessions in the Multiple Risk Factor Intervention Trial helped reduce coronary heart disease risk factors. Attending sessions significantly increased smoking cessation and decreased cholesterol, while internal locus of control lowered blood pressure.

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    Area of Science:

    • Cardiovascular Health
    • Behavioral Medicine
    • Public Health Interventions

    Background:

    • Coronary heart disease (CHD) poses a significant public health challenge.
    • Identifying effective interventions for multiple CHD risk factors is crucial.
    • The Multiple Risk Factor Intervention Trial (MRFIT) aimed to reduce CHD mortality through risk factor modification.

    Purpose of the Study:

    • To predict changes in key CHD risk factors (smoking, hypertension, cholesterol) within the MRFIT intervention group.
    • To examine the influence of psychosocial factors, intervention engagement, and weight change on risk factor modification.
    • To understand predictors of risk factor reduction in high-risk men.

    Main Methods:

    • Analysis of 652 high-risk men randomized into the MRFIT intervention group.

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  • Stratification based on baseline smoking status and hypertension medication use.
  • Assessment of psychosocial characteristics, group session attendance, and weight change as predictors.

    • Main Results:

    • No single model explained changes across all three risk factors.
    • Group session attendance significantly increased smoking cessation (p ≤ .001).
    • Internal locus of control predicted lower blood pressure, independent of medication (p ≤ .05).
    • Attending group sessions was associated with decreased serum cholesterol when it was the primary concern (p ≤ .05).

    Conclusions:

    • Intervention strategies, particularly group sessions, can effectively target specific CHD risk factors.
    • Psychosocial factors like locus of control play a role in managing hypertension.
    • Tailored approaches are necessary as no single intervention model addresses all risk factors uniformly.