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Is type A behavior really a trigger for coronary heart disease events?

Gallacher, John Edward, Sweetnam, Peter M., Yarnell, John W.G., Elwood, Peter Creighton and Stansfeld, Stephen A. 2003. Is type A behavior really a trigger for coronary heart disease events? Psychosomatic Medicine 65 (3) , pp. 339-346. 10.1097/01.PSY.0000041608.55974.A8

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OBJECTIVE: The purpose of this study was to compare chronic with acute mechanisms by which Type A might predict incident coronary heart disease (CHD). METHOD: The study included 2394 men aged 50 to 64 years who were assessed for CHD, Type A behavior, and CHD risk factors. Type A was assessed using the Jenkins Activity Survey (JAS), the Bortner scale, and the Framingham scale. Further examinations were completed at 5 and 9 years for incident CHD. RESULTS: After 9 years, there was no increased risk of CHD associated with any Type A score. Nevertheless, high Bortner scores were associated with increased risk of incident CHD at 5 years and high JAS and Bortner scores were associated with a decreased risk between 5 and 9 years. Further analysis of Type A scores on time to first coronary event found strong inverse associations for all type A scores (JAS = 205 -0.49 months to first event, 95% CI = -0.20, -0.78, p = .001) (Bortner = 176 -0.27 months; 95% CI = -0.10, -0.44; p = .002) (Framingham = 0.44 -0.0011 months; 95% CI = -0.0002, -0.0019; p = .01). CONCLUSIONS: The data show Type A is a strong predictor of when incident coronary heart disease (or coronary event) will occur rather than if it will occur. These findings suggest that Type A increases exposure to potential triggers, rather than materially affecting the process of atherosclerosis.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Systems Immunity Research Institute (SIURI)
Subjects: R Medicine > R Medicine (General)
Uncontrolled Keywords: coronary disease • Type A behavior • trigger hypothesis • atherosclerosis • stress • psychosocial factors
ISSN: 15347796
Last Modified: 04 Jun 2017 01:30

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