Department of Epidemiology and Biostatistics and Cancer Prevention and Control Program, Arnold School of Public Health, University of South Carolina, Columbia, SC, 29208, USA.
Department of Epidemiology and Biostatistics and Cancer Prevention and Control Program, Arnold School of Public Health, University of South Carolina, Columbia, SC, 29208, USA; Connecting Health Innovations, LLC, Columbia, SC, 29208, USA.
Sleep Med Rev. 2024 Oct;77:101964. doi: 10.1016/j.smrv.2024.101964. Epub 2024 May 29.
Sleep has strong inflammatory underpinnings and diet is one of the primary determinants of systemic inflammation. A systematic literature review was conducted to synthesize current research associating dietary inflammatory potential, as measured by the dietary inflammatory index (DII®) or the energy-adjusted DII (E-DII™) and sleep quality and duration. The National Library of Medicine (Medline), Web of Science, and PsycInfo databases were searched through March 2023. Studies must have used the DII/E-DII as the independent variable and sleep outcomes as dependent variables. Study characteristics, based on STROBE guidelines, were scored based on the presence of the recommendation. Out of the initial 14 studies identified, a total of 12 studies were included for data synthesis. In all 12 studies, more anti-inflammatory diets (i.e., low DII/E-DII scores) were associated with better sleep in at least one sleep domain (most often sleep efficiency and wake-after-sleep-onset). Among those studies with more rigorous diet and sleep measurements, such as dietary recalls and actigraphy, associations between DII/E-DII and sleep outcomes were stronger and more consistent compared to studies using primarily subjective assessments. More rigorous measurement of diet and sleep, especially those relating to sleep stage structure, should be considered in future studies with prospective designs.
睡眠具有强烈的炎症基础，而饮食是全身炎症的主要决定因素之一。本系统综述旨在综合目前关于饮食炎症潜力与睡眠质量和持续时间关系的研究，饮食炎症潜力通过饮食炎症指数（DII®）或能量调整的 DII（E-DII™）来衡量。研究检索了 2023 年 3 月前的美国国立医学图书馆（Medline）、Web of Science 和 PsycInfo 数据库。研究必须使用 DII/E-DII 作为自变量，睡眠结果作为因变量。基于 STROBE 指南，根据建议的存在情况对研究特征进行评分。在最初确定的 14 项研究中，共有 12 项研究被纳入数据综合分析。在所有 12 项研究中，至少在一个睡眠领域（最常见的是睡眠效率和睡眠起始后觉醒时间）中，更具抗炎作用的饮食（即低 DII/E-DII 评分）与更好的睡眠相关。在那些对饮食和睡眠进行了更严格测量的研究中，如饮食记录和活动记录仪，与 DII/E-DII 和睡眠结果之间的关联比主要使用主观评估的研究更强且更一致。在具有前瞻性设计的未来研究中，应更严格地测量饮食和睡眠，尤其是与睡眠阶段结构相关的测量。
