Key result
Habitual tea consumption was associated with lower brachial-ankle pulse wave velocity (OR 0.63; 95% CI 0.57-0.70), suggesting a protective effect against arterial stiffness.
Why the study?
Does habitual tea consumption reduce arterial stiffness in adults aged 40-75?
Cross-Sectional (n=5,006)
Does habitual tea consumption reduce arterial stiffness in adults aged 40-75?
Habitual tea consumption, especially for more than 6 years and >10 g daily, is associated with reduced arterial stiffness in adults.
Answers are grounded in this paper and cite their sources.
Hypothesis-generating for tea and arterial stiffness; prospective trials needed before clinical adoption.
BACKGROUND AND AIMS: To explore the relationship between habitual tea consumption and arterial stiffness. METHODS: This is a cross-sectional, epidemiological survey of 6589 male and female residents aged 40-75 in Wuyishan, Fujian Province, China. Tea consumption and other lifestyle characteristics were obtained by structured questionnaires. Pulse wave velocity (PWV) and ankle-brachial pressure index (ABI) were measured using an automated analyzer. RESULTS: Among the 5006 analyzed subjects, 1564 adults (31.2%) consumed tea once or more per week for at least one year. The levels of brachial-ankle pulse wave velocity (ba-PWV) were lowest among subjects who consumed tea habitually for more than 10 years compared with the other 3 subgroups (nonhabitual, 1 to 5 years, and 6 to 10 years habitual tea drinkers), and the levels of ba-PWV were lower with subjects who consumed 10-20 and >20 g/d tea habitually compared to nonhabitual tea drinkers. As the duration and the daily amount of habitual tea consumption increased the average ba-PWV decreased. Multiple logistic regression models revealed that habitual tea consumption was a positive predictor for ba-PWV (odds ratio [OR] = 0.63, 95% confidence interval [CI], 0.57-0.70). CONCLUSIONS: Habitual tea consumption may have a protective effect against arterial stiffness, especially for subjects who have habitually consumed tea for more than 6 years and >10 g daily.
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Lin et al. (2015) reported a cross-sectional. Habitual tea consumption vs. Nonhabitual tea drinkers was evaluated on brachial-ankle pulse wave velocity (ba-PWV) (OR 0.63, 95% CI 0.57-0.70). Habitual tea consumption was associated with lower brachial-ankle pulse wave velocity (OR 0.63; 95% CI 0.57-0.70), suggesting a protective effect against arterial stiffness.
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