Yin J-Y, Duan S-Y, Liu F-C, Yao Q-K, Tu S, Xu Y, Pan C-W
Chen-Wei Pan, MD, PhD, School of Public Health, Medical College of Soochow University, 199 Ren Ai Road, Suzhou, China 215123. Tel: +86 0512 65883907 / Email:
J Nutr Health Aging. 2017;21(10):1151-1159. doi: 10.1007/s12603-016-0829-4.
Tea has long been hypothesized to possess hypotensive effects. However, there is uncertainty regarding the association of tea consumption with arterial blood pressure (BP). We aimed to examine the association between tea consumption and BP components including systolic BP (SBP) and diastolic BP (DBP).
Community-based, cross-sectional study of Suzhou City, Jiangsu Province, China.
Tea consumption has protective influence on BP and presence of hypertension.
4579 older adults aged 60 years or older from the Weitang Geriatric Diseases study.
Detailed information regarding tea consumption was collected using a pre-designed questionnaire. BP components were measured at least 3 times with a minimum 5-minute interval, by well-trained research nurses.
Data of 4579 older adults (response rate: 82%) aged 60 years or older from the Weitang Geriatric Diseases study were included in the analysis and we estimated the relationship of tea consumption and BP using linear regression models and the association between tea consumption and risk of hypertension using logistic regression models.
In linear regression models, higher tea consumption frequency was found to be associated with lower systolic BP values, after adjusting for the effect of age, sex, education level, lifestyle-related factors, and cardiometabolic confounding factors in overall (coefficient =-1.49, P=0.0003), normotensive (coefficient =-0.91, P=0.017) and participants without anti-hypertensive treatment (coefficient =-1.26, P=0.027). Significant inverse association between diastolic BP and frequency of tea consumption was also observed in the overall subjects (coefficient =-0.74, P=0.003). In multivariate logistic analyses, habitual tea drinking was inversely associated with presence of hypertension [odds ratio (OR)=0.79, P=0.011] , and there was a progressive reduction in risk associated with higher frequency of tea consumption (P for trend=0.011).
Habitual tea consumption was found to be associated with lower values of components of BP and a reduced likelihood of having hypertension in older adults. Given the widespread consumption of tea throughout China and the world, together with the major cardiovascular disease risk, our findings have important implications for human health.
长期以来，人们一直推测茶具有降血压作用。然而，茶的摄入量与动脉血压（BP）之间的关联尚不确定。我们旨在研究茶的摄入量与包括收缩压（SBP）和舒张压（DBP）在内的血压成分之间的关联。
基于社区的横断面研究，在中国江苏省苏州市进行。
茶的摄入对血压和高血压的发生具有保护作用。
来自渭塘老年疾病研究的4579名60岁及以上的老年人。
使用预先设计的问卷收集有关茶摄入量的详细信息。由训练有素的研究护士测量血压成分，至少测量3次，间隔至少5分钟。
纳入来自渭塘老年疾病研究的4579名60岁及以上老年人的数据（应答率：82%），我们使用线性回归模型估计茶摄入量与血压的关系，并使用逻辑回归模型估计茶摄入量与高血压风险之间的关联。
在线性回归模型中，在总体上调整年龄、性别、教育水平、生活方式相关因素和心脏代谢混杂因素的影响后（系数=-1.49，P=0.0003），发现较高的茶摄入频率与较低的收缩压值相关；在血压正常者中（系数=-0.91，P=0.017）以及未接受抗高血压治疗的参与者中（系数=-1.26，P=0.027）也有此关联。在总体受试者中也观察到舒张压与茶摄入频率之间存在显著的负相关（系数=-0.74，P=0.003）。在多变量逻辑分析中，经常喝茶与高血压的存在呈负相关[比值比（OR）=0.79，P=0.011]，并且随着茶摄入频率的增加，风险逐渐降低（趋势P=0.011）。
发现经常喝茶与老年人较低的血压成分值以及患高血压的可能性降低有关。鉴于茶在中国和世界范围内的广泛消费，以及主要的心血管疾病风险，我们的研究结果对人类健康具有重要意义。
