Key result
A high-carbohydrate diet was independently associated with increased arterial stiffness in patients with established cardiovascular disease.
Why the study?
Is a high-carbohydrate diet associated with increased arterial stiffness in high-risk cardiovascular patients?
Cross-Sectional (n=457)
No
Is a high-carbohydrate diet associated with increased arterial stiffness in high-risk cardiovascular patients?
Answers are grounded in this paper and cite their sources.
A high-carbohydrate diet (≥60% of total energy) is associated with increased arterial stiffness in patients with established cardiovascular disease or risk equivalents.
BACKGROUND: Previous studies suggested that high dietary carbohydrate intake is associated with increased cardiovascular risk through raised triglyceride and decreased high-density lipoprotein-cholesterol levels. However, the relation between carbohydrate intake and arterial stiffness has not been established. The purpose of this study was to examine this relation among high-risk cardiovascular patients. METHODS: We studied the relation between dietary macronutrient intake and arterial stiffness in 364 patients with documented cardiovascular diseases or risk equivalent (coronary artery diseases 62%, ischemic stroke 13%, diabetes mellitus 55%) and in 93 age-and-sex matched control subjects. Dietary macronutrient intake was assessed using a validated food-frequency questionnaire (FFQ) for Chinese. Heart-ankle pulse wave velocity (PWV) was measured non-invasively with a Vascular Profiling System (VP2000, Colin Corp. USA). A dietary pattern with ≥60% total energy intake derived from carbohydrates was defined as a high-carbohydrate diet according to the Dietary Reference Intakes (DRI) for Chinese. RESULTS: Subjects who consumed a high-carbohydrate diet had significantly higher mean PWV than those who did not consume a high-carbohydrate diet (P = 0.039). After adjustment for potential confounders, high-carbohydrate diet was associated with significantly increased PWV [B = 73.50 (10.81 to 136.19), P = 0.022]. However, there was no significant association between high-carbohydrate diet and PWV in controls (P = 0.634). CONCLUSIONS: High-carbohydrate diet is associated with increased arterial stiffness in patients with established cardiovascular disease or risk equivalent.
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Chan et al. (2014) conducted a cross-sectional in Established cardiovascular disease or risk equivalent (n=457). High-carbohydrate diet (≥60% total energy intake) vs. Non-high-carbohydrate diet (<60% total energy intake) was evaluated on Heart-ankle pulse wave velocity (PWV) (B = 73.50, 95% CI 10.81 to 136.19, p=0.022). A high-carbohydrate diet was independently associated with increased arterial stiffness in patients with established cardiovascular disease.
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