Anger and incident heart disease in the caerphilly study

Area of Science:

• Cardiology
• Psychology
• Epidemiology

Background:

• The link between anger and ischemic heart disease (IHD) is a long-standing hypothesis.
• Previous research has inconsistently supported this association, often focusing on hostility as the key anger component.
• This study investigates anger's predictive role in IHD using data from the Caerphilly study.

Purpose of the Study:

• To explore the relationship between different facets of anger and the risk of developing ischemic heart disease (IHD).
• To determine if specific anger expression styles, beyond hostility, predict IHD events.
• To examine the predictive value of 'anger out' and 'suppressed anger' for IHD risk.

Main Methods:

• Prospective cohort study involving 2890 men aged 49-65 years.
• Assessment of anger using Framingham scales (anger symptoms, anger in, anger out, anger discuss) and a novel 'suppressed anger' scale.
• Collection of cardiovascular risk factors, psychosocial variables, and behavioral data.
• Analysis of incident major ischemic heart disease (IHD) events over a 9-year follow-up using logistic regression.

Main Results:

• A low 'anger out' score was significantly associated with an increased risk of major IHD events (RO = 1.70).
• This association remained robust after adjusting for physiological, psychosocial, and behavioral risk factors.
• Suppressed anger also showed a similar association with incident IHD, identifying at-risk individuals more precisely.

Conclusions:

• Both 'anger out' and 'suppressed anger' independently predict incident ischemic heart disease (IHD).
• These anger constructs differ from hostility, suggesting alternative pathways linking anger to IHD.
• A nuanced understanding of anger's various dimensions is crucial for predicting IHD risk.