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. 2023:28:62.
doi: 10.1265/ehpm.23-00125.

Life satisfaction and the risk of atherosclerotic cardiovascular disease in the general Japanese population: the Suita Study

Ahmed Arafa  1   2 , Rena Kashima  1   3 , Yoshihiro Kokubo  1
Affiliations

Life satisfaction and the risk of atherosclerotic cardiovascular disease in the general Japanese population: the Suita Study

Ahmed Arafa et al. Environ Health Prev Med. 2023.

Abstract

Background: Atherosclerotic cardiovascular disease (ASCVD) is a major cause of morbidity and mortality. Life satisfaction is a measure of mental health with a potential cardioprotective role. This study aimed to investigate the association between life satisfaction and ASCVD risk in the general Japanese population.

Method: We used data from 6,877 people (30-84 years) registered in the Suita Study, a Japanese population-based prospective cohort study. All participants were free from stroke and coronary heart disease (CHD) at baseline. Then, participants were followed up for incident ASCVD, including cerebral infarction and CHD. Cox proportional hazards models were used to calculate the hazard ratio (HR) and 95% confidence interval (95% CI) of incident ASCVD according to life satisfaction.

Results: Within 102,545 person-years (median follow-up = 16.6 years), 482 incident ASCVD events were identified. In the age- and sex-adjusted model, being very satisfied, rather satisfied, or not sure, compared to being dissatisfied with life, showed a lower risk of ASCVD: HR (95% CI) = 0.55 (0.41, 0.74), 0.67 (0.50, 0.89), and 0.57 (0.36, 0.88), respectively (p-trend < 0.001). The associations remained consistent after adjusting for stress and unfortunate events: HR (95% CI) = 0.57 (0.42, 0.77), 0.68 (0.50, 0.91), and 0.54 (0.35, 0.84), respectively (p-trend < 0.001). The results did not vary between cerebral infarction and CHD: HR (95% CI) for being very satisfied with life = 0.58 (0.37, 0.91) and 0.55 (0.36, 0.84), respectively.

Conclusion: Life satisfaction was inversely associated with the risk of ASCVD in the investigated general Japanese population.

Keywords: Atherosclerotic cardiovascular diseases; Japan; Life satisfaction; Prospective cohort studies.

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Conflict of interest statement

We have no competing interest to declare.

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