Perceived mental stress and mortality from cardiovascular disease among Japanese men and women: the Japan Collaborative Cohort Study for Evaluation of Cancer Risk Sponsored by Monbusho (JACC Study).
BACKGROUND
Perceived mental stress has been associated with risk of coronary heart disease (CHD) in white men, but no prospective data are available for other ethnic groups.


RESULTS
From 1988 to 1990, a total of 73 424 Japanese (30 180 men and 43 244 women), aged 40 to 79 years, without a history of stroke, CHD, or cancer completed a lifestyle questionnaire including perception of mental stress under the Japan Collaborative Cohort Study for Evaluation of Cancer Risk Sponsored by Monbusho (JACC Study). Systematic surveillance was completed until the end of 1997, with a 580 378 person-year follow-up, and the underlying causes of death were determined according to the International Classification of Diseases, 10th revision. For women, there were 316 with total stroke, 113 with CHD, and 643 with total cardiovascular disease (CVD); for men, there were 341, 168, and 778, respectively. Women who reported high stress had a 2-fold higher age-adjusted risk of mortality from total stroke and CHD and 1.5-fold higher risk of total CVD compared with those who reported low stress. Further adjustment for known cardiovascular risk factors and selected psychological variables did not alter the associations materially. The multivariate relative risk for women who perceived high stress versus low stress was 2.24 (95% CI 1.52 to 3.31, P<0.001) for total stroke, 2.28 (95% CI 1.17 to 4.43, P=0.02) for CHD, and 1.64 (95% CI 1.25 to 2.16, P<0.001) for total CVD. For men, these relations were generally weaker but suggestive of myocardial infarction.


CONCLUSIONS
Perceived mental stress was associated with increased mortality from stroke for women and with CHD for men and women.
Department of Public Health Medicine, Institute of Community Medicine, University of Tsukuba, Ibaraki, Japan.
Hiroyasu
H
Iso
Chigusa
C
Date
Akio
A
Yamamoto
Hideaki
H
Toyoshima
Naohito
N
Tanabe
Shogo
S
Kikuchi
Takaaki
T
Kondo
Yoshiyuki
Y
Watanabe
Yasuhiko
Y
Wada
Teruo
T
Ishibashi
Hiroshi
H
Suzuki
Akio
A
Koizumi
Yutaka
Y
Inaba
Akiko
A
Tamakoshi
Yoshiyuki
Y
Ohno
D000328:Adult; D000368:Aged; D002318:Cardiovascular Diseases / Q000209:etiology / Q000401:mortality*; D015331:Cohort Studies; D003327:Coronary Disease / Q000209:etiology / Q000401:mortality; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000209:etiology / Q000401:mortality; D009369:Neoplasms / Q000209:etiology; D010465:Perception; D011446:Prospective Studies; D012307:Risk Factors; D013315:Stress, Psychological / Q000150:complications*; D020521:Stroke / Q000209:etiology / Q000401:mortality