Guo Xiaolei, Ma Jixiang, Yan Liuxia, Bi Zhenqiang, Zhang Xiaofei, Chen Xi, Zhang Jiyu, Cai Xiaoning, Lu Zilomg, Xu Aiqiang
Department of Noncommunicable Disease Control and Prevention, Shandong Center for Disease Control and Prevention, Jinan 250014, China.
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Zhonghua Yu Fang Yi Xue Za Zhi. 2014 Feb;48(2):119-23.
To study the relationship between salt consumption and blood pressure among residents in Shandong province, and to provide basic information for guiding people to prevent hypertension by reducing salt intake.
Using multi-stage stratified cluster random sampling method, 2 184 residents aged 18 to 69 were selected as the research subjects, which were extracted randomly from 20 counties in Shandong province in June, 2011. The blood pressure of the subjects were measured and weighted. Based on 72 h dietary recalls and weighing measurement, and according to the distribution of salt intake, the grouping cut-off points were 10, 14 and 18 g. The difference of subjects with different characteristics and systolic blood pressure, diastolic blood pressure and prevalence of hypertension by grouping salt intake and other characteristics were analyzed, and the relationship between salt intake and prevalence of hypertension were analyzed.
The total of 2 133 residents were involved finally, the completion rate was 97.7%. After the complex weighted, the systolic and diastolic blood pressure's means (95%CI value) of the subjects were 121.0 (119.5-122.5) mmHg (1 mmHg = 0.133 kPa) and 78.5(77.4-79.6) mmHg respectively, which were all elevated with increasing of salt consumption. The blood pressure of the subjects with salt intake <10 g was the lowest, which were 119.6 (116.9-122.4) mmHg and 77.5(76.2-78.7) mmHg respectively. The blood pressure of the subjects with salt intake ≥ 18 g was the highest, which were 122.3(120.1-124.5) mmHg and 79.6(78.2-80.9) mmHg respectively. The analysis results showed that, among residents with normal waistline, the prevalence of hypertension of people with salt intake ≥ 18 g was 1.70(95%CI:1.04-2.76) times compared to that of people who consumed less than 10 g salt per day.
The hypertension prevalence of Shandong province is quite high, and there is a relationship between salt consumption and blood pressure.
研究山东省居民盐摄入量与血压之间的关系，为指导人们通过减少盐摄入量预防高血压提供基础资料。
采用多阶段分层整群随机抽样方法，于2011年6月从山东省20个县随机抽取2184名18～69岁居民作为研究对象。对研究对象进行血压测量并加权。基于72小时饮食回顾和称重测量，根据盐摄入量分布，分组切点为10、14和18克。分析不同特征及分组盐摄入量与其他特征的研究对象的收缩压、舒张压及高血压患病率的差异，分析盐摄入量与高血压患病率的关系。
最终纳入2133名居民，完成率为97.7%。经过复杂加权后，研究对象的收缩压和舒张压均值（95%CI值）分别为121.0（119.5～122.5）mmHg（1mmHg = 0.133kPa）和78.5（77.4～79.6）mmHg，均随盐摄入量增加而升高。盐摄入量<10克的研究对象血压最低，分别为119.6（116.9～122.4）mmHg和77.5（76.2～78.7）mmHg。盐摄入量≥18克的研究对象血压最高，分别为122.3（120.1～124.5）mmHg和79.6（78.2～80.9）mmHg。分析结果显示，在腰围正常的居民中，盐摄入量≥18克的人群高血压患病率是每天盐摄入量少于10克人群的1.70（95%CI：1.04～2.76）倍。
山东省高血压患病率较高，盐摄入量与血压之间存在关联。
