AI Article Synopsis
- Sleep characteristics have an unclear relationship with coronary artery calcification (CAC) progression, as shown in a study of 3,043 participants aged 45-74 in Germany.
- The study utilized logistic and linear regression models to analyze the effects of factors like sleep duration and disorders on CAC incidence and progression over a 5-year period.
- Results indicated minimal association between sleep habits and CAC progression, with some slight variations in incidence based on total sleep duration and sleep disorders, but overall the findings suggest sleep characteristics have little impact on CAC changes.
Article Abstract
Background And Aims: Sleep characteristics are associated with incident cardiovascular diseases (CVD), but there is a lack of studies on the association between sleep characteristics and incidence/progression of coronary artery calcification (CAC).
Methods: In the Heinz Nixdorf Recall Study, a population-based cohort study in Germany, CAC was assessed by electron-beam tomography at baseline and at 5-year follow-up. In an analysis set of 3043 subjects (age at baseline 45-74 years; 47% men), we fitted logistic and linear regression models to assess associations between self-rated sleep characteristics (nocturnal and total sleep duration; napping; various sleep disorders) and CAC incidence/CAC progression. Progression was measured as 5-year progression factor, as categories of absolute CAC change, and additionally characterized as rapid or slow compared to an extrapolation of baseline CAC values.
Results: We observed barely any association between sleep characteristics and CAC progression regardless of the chosen statistical approach; associations between sleep and CAC incidence were slightly larger, e.g., the geometric mean of the 5-year CAC progression factor was 6.8% (95% confidence interval: -9.5; 25.9) larger for ≤5 h, 2.9% (-7.3; 14.3) larger for 5.1-6.9 h and 7.1% (-2.4; 15.7) smaller for ≥7.5 h total sleep compared to 7- <7.5 h total sleep. For subjects with any regular sleep disorder, the geometric mean of the 5-year CAC progression was 3.5% (-4.7; 11.2) smaller compared to subjects without any regular sleep disorder.
Conclusions: In this German cohort study, sleep characteristics were barely associated with CAC progression.
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| http://dx.doi.org/10.1016/j.atherosclerosis.2018.02.013 | DOI Listing |
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