Persistent cognitive depressive symptoms are associated with coronary artery calcification

Area of Science:

• Cardiovascular Epidemiology
• Psychiatry
• Preventive Cardiology

Background:

• The link between depression and sub-clinical atherosclerosis is not fully understood.
• Previous studies often assessed depressive symptoms at a single time point, limiting the understanding of long-term effects.
• This study investigates the association between long-term depressive symptoms and coronary artery calcification (CAC).

Purpose of the Study:

• To examine the association of persistent depressive symptoms, assessed over a decade, with sub-clinical coronary atherosclerosis.
• To differentiate the impact of long-term versus single episodes of depression on cardiovascular health.

Main Methods:

• Utilized data from 454 healthy, non-medicated participants in the Whitehall II cohort.
• Assessed depressive symptoms at three distinct time points over 10 years.
• Measured coronary artery calcification (CAC) as a marker of sub-clinical atherosclerosis at follow-up.

Main Results:

• 18.9% of participants reported depressive symptoms at least once.
• Persistent depression was associated with a more than two-fold increased risk of detectable CAC (Agatston score > 0) and high CAC (Agatston score >= 100).
• These associations were more pronounced in men, and single depressive episodes were not linked to elevated CAC risk.

Conclusions:

• Persistent depressive symptoms over time, not isolated episodes, are linked to sub-clinical coronary atherosclerosis.
• The findings are particularly relevant for men without known cardiovascular disease or diabetes.
• Emphasizes the importance of evaluating the duration of depressive symptoms in cardiovascular risk assessment.