老年人膳食钾摄入量与认知功能之间的关系：一项横断面研究。

IF 2.9 Q3 NUTRITION & DIETETICS

Clinical nutrition ESPEN Pub Date : 2025-03-24 DOI:10.1016/j.clnesp.2025.03.034

Yun Zhao , Wei Li , Binglin Yang, Dongxu Zhai, Hui Xu, Xia Liu, Shushan Jia

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引用次数: 0

摘要

研究目的本研究调查了老年人膳食钾摄入量与认知功能之间的关系：我们利用 2011-2014 年美国国家健康与营养调查（NHANES）的数据开展了一项横断面观察研究。共有 2,555 名 60 岁及以上的参与者参与了分析。膳食钾摄入量通过两次 24 小时膳食回忆的平均值进行估算。认知功能采用数字符号替换测试（DSST）进行评估，该测试测量处理速度。我们采用多变量逻辑回归模型来研究钾摄入量与认知功能之间的关系：结果：在纳入 NHANES 2011-2014 年调查的 2,555 名参与者中，钾摄入量最高四分位数（Q4）的人的认知功能明显优于最低四分位数（Q1）的人（OR = 0.542，95% CI：0.378-0.778，p）：较高的钾膳食摄入量可降低老年人认知功能下降或异常的风险。

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Association between dietary potassium intake and cognitive function among older adults: A cross-sectional study

Objective

This study investigated the association between dietary potassium intake and cognitive function in older adults.

Methods

We conducted a cross-sectional observational study using data from the National Health and Nutrition Examination Survey (NHANES) 2011–2014. A total of 2555 participants, aged 60 years and older, were included in the analysis. Dietary potassium intake was estimated by averaging two 24-h dietary recalls. Cognitive function was evaluated using the Digit Symbol Substitution Test (DSST), which measures processing speed. We applied multivariate logistic regression models to examine the relationship between potassium intake and cognitive function.

Results

Among the 2555 participants included from NHANES 2011–2014, those in the highest quartile of potassium intake (Q4) demonstrated significantly better cognitive function compared to those in the lowest quartile (Q1) (OR = 0.542, 95 % CI: 0.378–0.778, p < 0.05) in the fully adjusted model. The relationship between dietary potassium intake and cognitive function in U.S. adults was found to be nonlinear (p for nonlinear = 0.028). In univariate analysis, as dietary potassium intake increased, the risk of suffering from cognitive decline or abnormalities decreased (OR (Q2) = 0.592; OR (Q3) = 0.401; OR (Q4) = 0.34; p < 0.001). In statistically significant subgroup analyses, it was also found that people with high dietary potassium intake were at less risk of cognitive impairment or abnormalities than those with low dietary potassium intake (p < 0.001).

Conclusion

Higher dietary potassium intake may reduce the risk of cognitive decline or abnormalities in older adults.

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来源期刊

Clinical nutrition ESPEN NUTRITION & DIETETICS-

CiteScore

4.90

自引率

3.30%

发文量

512

期刊介绍： Clinical Nutrition ESPEN is an electronic-only journal and is an official publication of the European Society for Clinical Nutrition and Metabolism (ESPEN). Nutrition and nutritional care have gained wide clinical and scientific interest during the past decades. The increasing knowledge of metabolic disturbances and nutritional assessment in chronic and acute diseases has stimulated rapid advances in design, development and clinical application of nutritional support. The aims of ESPEN are to encourage the rapid diffusion of knowledge and its application in the field of clinical nutrition and metabolism. Published bimonthly, Clinical Nutrition ESPEN focuses on publishing articles on the relationship between nutrition and disease in the setting of basic science and clinical practice. Clinical Nutrition ESPEN is available to all members of ESPEN and to all subscribers of Clinical Nutrition.