Dietary calcium intake at breakfast is associated with a lower risk of cognitive impairment than at dinner in Chinese adults: the CHNS cohort study.

IF 1.3 4区 医学 Q4 NUTRITION & DIETETICS
Shuli Ma, Jie Ge, Xiaoting Chen, Zhe Chen, Yunfeng Han, Zhiping Xie, Jiaxin Chen, Hang Dai, Qiong Xiao, Liang Xu, Yuehui Jia
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Abstract

Background and objectives: If the proportion of calcium intake over a whole day is related to the risk of cognitive impairment in adults is still largely unknown. This research aimed to examine the relation of dietary calcium intake at dinner versus breakfast with the risk of cognitive impairment by using data from the China Health and Nutrition Survey (CHNS).

Methods and study design: A total of 2,099 participants (including 668 cognitive impairment) in the CHNS (1997-2006) were included. The participants were categorized into 5 groups in accordance with the ratio of dietary calcium intake at dinner and breakfast (Δ = dinner/breakfast). After adjustment was conducted for a series of confounding factors, Cox hazard regression modelling was performed to discuss the relation of Δ with cognitive impairment. Dietary substitution models were used to explore the changes in cognitive impairment risk when a 5% dietary calcium intake at dinner was replaced with dietary calcium intake at breakfast.

Results: Participants in the highest distribution of Δ showed a greater susceptibility to cognitive impairment than those in the lowest quintile, with an adjusted hazard ratio of cognitive impairment of 1.38 (95% CI: 1.08-1.76). When maintaining total calcium intake, substituting 5% of dietary calcium intake at dinner with calcium intake at breakfast was related to an 8% decrease in the risk of cognitive impairment.

Conclusions: Higher dietary calcium intake at dinner was associated with an increased risk of cognitive impairment, emphasizing the importance of appropriately distributing dietary calcium intake between breakfast and dinner.

中国成年人早餐钙摄入量与认知障碍风险低于晚餐钙摄入量的关系:CHNS队列研究。
背景和目的:全天钙摄入量的比例是否与成人认知障碍的风险有关,目前尚不清楚。本研究旨在利用中国健康与营养调查(CHNS)的数据,探讨晚餐与早餐的膳食钙摄入量与认知障碍风险的关系:方法与研究设计:共纳入 2,099 名中国健康营养调查(1997-2006 年)的参与者(包括 668 名认知障碍患者)。按照晚餐和早餐膳食钙摄入量的比例(Δ = 晚餐/早餐)将参与者分为 5 组。在对一系列混杂因素进行调整后,研究人员对Δ与认知障碍的关系进行了Cox危险回归建模。膳食替代模型用于探讨将晚餐膳食钙摄入量的5%替换为早餐膳食钙摄入量时认知障碍风险的变化:结果:Δ分布最高的参与者比Δ分布最低的参与者更容易出现认知障碍,认知障碍的调整危险比为 1.38(95% CI:1.08-1.76)。在保持总钙摄入量的情况下,用早餐钙摄入量替代晚餐膳食钙摄入量的5%,可使认知障碍风险降低8%:结论:晚餐膳食钙摄入量较高与认知障碍风险增加有关,这强调了在早餐和晚餐之间合理分配膳食钙摄入量的重要性。
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来源期刊
CiteScore
2.50
自引率
7.70%
发文量
58
审稿时长
6-12 weeks
期刊介绍: The aims of the Asia Pacific Journal of Clinical Nutrition (APJCN) are to publish high quality clinical nutrition relevant research findings which can build the capacity of clinical nutritionists in the region and enhance the practice of human nutrition and related disciplines for health promotion and disease prevention. APJCN will publish original research reports, reviews, short communications and case reports. News, book reviews and other items will also be included. The acceptance criteria for all papers are the quality and originality of the research and its significance to our readership. Except where otherwise stated, manuscripts are peer-reviewed by at least two anonymous reviewers and the Editor. The Editorial Board reserves the right to refuse any material for publication and advises that authors should retain copies of submitted manuscripts and correspondence as material cannot be returned. Final acceptance or rejection rests with the Editorial Board
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