Job strain, Type A behavior pattern, and the prevalence of coronary atherosclerosis in Japanese working men

Kouichi Yoshimasu, Ying Liu, Hiroko Kodama, Shizuka Sasazuki, Masakazu Washio, Keitaro Tanaka, Shoji Tokunaga, Suminori Kono, Hidekazu Arai, Samon Koyanagi, Koji Hiyamuta, Yoshitaka Doi, Tomoki Kawano, Osamu Nakagaki, Kazuyuki Takada, Takanobu Nii, Kazuyuki Shirai, Munehito Ideishi, Kikuo Arakawa, Masahiro MohriAkira Takeshita

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Objective: To examine the relation of type A behavior pattern and job strain to angiographically documented coronary stenosis. Methods: Subjects were 197 male Japanese patients with a full-time job. A questionnaire-based interview elicited psychosocial and other factors. Type A behavior pattern was measured by 12 questions, and job strain by the method of Karasek. Significant coronary stenosis was defined when a 75% or greater luminal narrowing occurred at one or more major coronary arteries or when a 50% or greater narrowing occurred at the left main artery. Logistic regression analysis used to calculate odds ratio (OR) and 95% confidence interval (CI) with adjustment for traditional coronary risk factors and job type Results: Type A behavior pattern was related to a statistically non-significant lower prevalence of the coronary stenosis especially in the absence of job strain (adjusted OR 0.6, 95% CI 0.3-1.2). Job strain was non-significantly associated with a modestly increased prevalence of coronary stenosis (OR 1.7, 95% CI 0.6-5.2) Conclusion: These findings suggest that both the behavioral pattern and psychosocial work environment may be related to coronary artery stenosis. (C) 2000 Elsevier Science Inc. All rights reserved.

Original languageEnglish
Pages (from-to)77-83
Number of pages7
JournalJournal of Psychosomatic Research
Issue number1
Publication statusPublished - 2000

All Science Journal Classification (ASJC) codes

  • Clinical Psychology
  • Psychiatry and Mental health


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