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BioPsychoSocial Medicine

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Open Access 01-12-2015 | Research

Psychosocial factors are preventive against coronary events in Japanese men with coronary artery disease: The Eastern Collaborative Group Study 7.7-year follow-up experience

Authors: Reiko Hori, Jun-ichiro Hayano, Kazuhiro Kimura, Nitaro Shibata, Fumio Kobayashi

Published in: BioPsychoSocial Medicine | Issue 1/2015

Abstract

Background

The Japanese Coronary-prone Behaviour Scale (JCBS) is a questionnaire developed by the Eastern Collaborative Group Study (ECGS), a multi-centre study of coronary-prone behaviour among Japanese men. Subscale C of the JCBS consists of 9 items that have been independently associated with the presence of coronary artery disease (CAD) in patients undergoing coronary angiography (CAG). There have been no reports of a relationship between any behavioural factor and the prognosis of CAD in Japan. The purpose of the current study was to investigate behavioural correlations with the prognosis of CAD as a part of the ECGS.

Methods

We examined the mortality and coronary events of 201 men (58 ± 10, 27-86 years) enrolled in the ECGS from 1990 to 1995, who underwent diagnostic coronary angiography and were administered the JCBS and the Japanese version of the Jenkins Activity Survey (JAS) Form C. Their health information after CAG was determined by a review of their medical records and by telephone interviews that took place from 2002 to 2003.

Results

Cardiac events during the follow-up period (7.7 ± 4.2 years) included 13 deaths from CAD, 25 cases of new-onset myocardial infarction, 26 cases of percutaneous coronary intervention, and 19 cases of coronary artery bypass graft surgery. There was no difference in established risk factors between groups with and without cardiac events. Seven factors were extracted by principal component analysis in order to clarify which factors were measured by the JCBS. Stepwise multivariate Cox-hazard regression analysis, in which 9 standard coronary risk factors were forced into the model, showed that Factor 4 from the JCBS (namely, the Japanese spirit of ‘Wa’) was independently associated with coronary events (hazard ratio: 0.21; p = 0.01). By other Cox-hazards regression analyses of coronary events using each set of JAS scores and the JCBS Scale C score instead of Factor 4 as selectable variables, the JAS scores or the JCBS Scale C score were not entered into the models.

Conclusion

The Japanese spirit of ‘Wa’ is a preventive factor against coronary events for Japanese men with CAD.

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Title: Psychosocial factors are preventive against coronary events in Japanese men with coronary artery disease: The Eastern Collaborative Group Study 7.7-year follow-up experience
Authors: Reiko Hori
Jun-ichiro Hayano
Kazuhiro Kimura
Nitaro Shibata
Fumio Kobayashi
Publication date: 01-12-2015
Publisher: BioMed Central
Published in: BioPsychoSocial Medicine / Issue 1/2015
Electronic ISSN: 1751-0759
DOI: https://doi.org/10.1186/s13030-015-0030-8

At a glance: The STEP trials

Springer Medicine

Psychosocial factors are preventive against coronary events in Japanese men with coronary artery disease: The Eastern Collaborative Group Study 7.7-year follow-up experience

Abstract

Background

Methods

Results

Conclusion

At a glance: The STEP trials

Springer Medicine

Abstract

Background

Methods

Results

Conclusion

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