Depressive symptoms, social isolation, and progression of coronary artery atherosclerosis: the Stockholm Female Coronary Angiography Study

• <i>Background:</i> Although both depressive symptoms and social isolation in relation to coronary heart disease have been studied previously, few have examined their joint effects on coronary atherosclerosis progression in women. <i>Method:</i> Among the women enrolled in the Stockholm Female Coronary Angiography Study, Sweden, between 1991 and 1994, 102 were evaluated for coronary atherosclerosis progression using a computer-assisted standardized assessment, repeated quantitative coronary angiographic documentation, of the mean luminal diameter change over 3 years in 10 predefined coronary segments. Depressive symptoms and social isolation were assessed by standard questionnaires. <i>Results:</i> Multivariable controlled mixed model ANOVAs revealed that women who were both depressed and socially isolated had the greatest disease progression: their absolute mean luminal diameter decreased by 0.18 mm [95% confidence interval (CI) = 0.11–0.24] and their percent narrowing was 5.5% (95% CI = 3.6–7.4), whereas in women who lacked both psychological risk factors, the mean luminal diameter decrease was 0.04 mm and their percent narrowing was 0.9%. These associations were independent of the baseline luminal diameter and standard risk factors, including age, smoking history, hypertension, and high-density lipoproteins. <i>Conclusions:</i>In women with coronary disease, depressive symptoms and social isolation in combination accelerated disease progression, suggesting a direct psychosocial effect on the atherosclerotic process. These findings provide an additional opportunity for therapeutic and preventive efforts against progression of coronary disease in women.

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