老年人饮食模式和认知功能的关联:系统性审查和元分析
Haoting Pei1, Sihan Liu2, Longxin Li1
1School of Nursing and Rehabilitation, Shandong University, China.
概括
健康的饮食模式显著改善了老年人的认知功能,可能延迟认知衰退. 这一发现为老年人营养和临床建议提供了直接指导.
科学领域:
- 老年医学 老年医学
- 营养科学 营养科学
- 流行病学 流行病学
背景情况:
- 认知功能障碍是一个主要的老年综合征,也是全球健康负担之一.
- 在提高老年人的认知功能方面,特定饮食模式的有效性仍在争论中.
- 这一元分析研究了老年人群中健康饮食和认知功能之间的关联.
研究的目的:
- 系统地评估60岁及以上成年人健康饮食模式与认知功能之间的关系.
- 通过元分析综合现有研究的证据,以澄清饮食对老年人认知健康的影响.
主要方法:
- 在主要数据库 (MEDLINE,Scopus,PubMed,Web of Science,Embase) 进行了全面的文献搜索,截至2024年6月.
- 研究包括60岁以上的参与者,具体的饮食模式,并提供了有效的认知结果指标.
- 数据提取包括几率比率 (ORs) 和95%置信区间;异质性使用I2和Egger回归进行评估;质量使用NOS和AHRQ尺度进行评估.
主要成果:
- 总共有15项研究,共计62,500名参与者被纳入了元分析.
- 汇总的几率比率表明,健康的饮食模式与老年人的认知功能改善有关 (OR = 0.60,95% CI:0.520.70,p<0.05).
- 所有包括的研究都符合质量评估标准 (得分≥6).
结论:
- 健康的饮食模式在改善或延迟老年人的认知衰退方面表现出显著的积极影响.
- 研究结果为老年人提供了实用的饮食指南,并为医疗保健专业人员提供了宝贵的参考资料.
- 建议进行更多研究的进一步研究,以解决异质性并提高分析的全面性.
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