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Abstract：
Modifiable factors associated with cognitive decline (CD) require more attention, particularly dietary patterns. This study aimed to investigate the link between cognitive decline and associated factors, particularly dietary patterns (DPs), in community-dwelling older Lebanese of modest economic status. Our cross-sectional national study included 352 participants above 60 years old, from the medico-social centers of the ministry of social affairs all over the country. CD was screened based on literacy. Nutritional and dietary data were collected through a validated food frequency questionnaire. DPs were extracted by the K-mean cluster analysis. CD was found in 32.7% and 61.5% of literate and illiterate groups, respectively. Identified DPs included a Westernized type and Mediterranean type, with high and moderate food intakes. In the context of literacy, independent factors associated with CD were age above 80 years, living in Beirut, frailty, and adopting a Westernized (OR = 3.08, 95% CI: 1.22-7.8) and a high-intake Mediterranean DP (OR = 2.11, 95% CI: 1.05-4.22). In the context of illiteracy, the same factors were associated with CD, but not DP nor frailty, with an age cut-off at 78 years. In a Lebanese sample of older adults, factors associated with CD depend on the level of literacy, with DP only associated with CD in the context of literacy.
摘要：
与认知下降（CD）相关的可改变因素需要更多的关注，特别是饮食模式。本研究旨在探讨认知功能下降与相关因素之间的联系。特别是饮食模式(DPs)，在经济地位适中的社区居住的老黎巴嫩人中。我们的全国横断面研究包括352名60岁以上的参与者，来自全国社会事务部的医疗社会中心。CD是根据识字率进行筛选的。通过经过验证的食物频率问卷收集营养和饮食数据。通过K均值聚类分析提取DPs。在有文化和不识字的群体中，有32.7%和61.5%的人发现了CD，分别。确定的DP包括西化类型和地中海类型，高和适度的食物摄入量。在识字的背景下，与CD相关的独立因素是80岁以上的年龄，住在贝鲁特,脆弱,并采用西化（OR=3.08，95％CI：1.22-7.8）和高摄入地中海DP（OR=2.11，95％CI：1.05-4.22）。在文盲的背景下，同样的因素与CD有关，但不是DP也不是脆弱，年龄截止到78岁。在黎巴嫩的老年人样本中，与CD相关的因素取决于识字水平，DP仅在识字的背景下与CD相关联。
