Tang Sui, Zhou Jin, Liu Changshu, Wang Sai, Cong Yang, Chen Liangkai, Zhang Li, Tan Xiao, Li Tingting, Li Yuanyuan, Wang Xiaoge, Deng Senli, Rong Shuang
Department of Nutrition, School of Public Health, Wuhan University, Research Center of Public Health, Renmin hospital of Wuhan University, Wuhan 430071, China.
Chinese Nutrition Society (CNS) Academy of Nutrition and Health (Beijing Zhongyinghui Nutrition and Health Research Institute), China.
Sleep Health. 2023 Oct;9(5):698-703. doi: 10.1016/j.sleh.2023.04.003. Epub 2023 Jun 4.
To investigate the association between plant-based diet indices and sleep quality in Chinese middle-aged and older adults.
The study included 2424 participants aged 45 years and older. Dietary data were collected using a semi-quantitative food frequency questionnaire, and sleep quality was assessed by the Pittsburgh Sleep Quality Index scale. Plant-based diet was categorized based on 3 indices (score range, 17-85) covering 17 food groups: the overall plant-based diet index, healthful plant-based diet index, and unhealthful plant-based diet index. The associations between these plant-based diet indices and sleep quality were examined using logistic and linear regression analyses.
After controlling for sociodemographic, lifestyle, and multiple disease-related factors, participants in the highest quartile of the healthful plant-based diet index had 0.55 higher odds of better sleep quality (95% CI: 0.42, 0.72; P< .001). In contrast, participants in the highest quartile of the unhealthful plant-based diet index had 2.03 higher odds of poor sleep quality (95% CI: 1.51, 2.72; P< .001). In addition, plant-based diet index and healthful plant-based diet index were inversely associated with Pittsburgh Sleep Quality Index scores, while unhealthful plant-based diet index and Pittsburgh Sleep Quality Index scores were positively associated.
We found unhealthy plant-based diets are significantly associated with poor sleep quality. Adherence to overall plant-based diets, especially healthy plant-based diets, was positively associated with optimal sleep quality.
探讨植物性饮食指数与中国中老年人群睡眠质量之间的关联。
该研究纳入了2424名年龄在45岁及以上的参与者。使用半定量食物频率问卷收集饮食数据，并通过匹兹堡睡眠质量指数量表评估睡眠质量。基于涵盖17个食物组的3个指数（评分范围为17 - 85）对植物性饮食进行分类：总体植物性饮食指数、健康植物性饮食指数和不健康植物性饮食指数。使用逻辑回归和线性回归分析检验这些植物性饮食指数与睡眠质量之间的关联。
在控制了社会人口统计学、生活方式和多种疾病相关因素后，健康植物性饮食指数最高四分位数的参与者睡眠质量较好的几率高0.55（95%可信区间：0.42，0.72；P <.001）。相比之下，不健康植物性饮食指数最高四分位数的参与者睡眠质量差的几率高2.03（95%可信区间：1.51，2.72；P <.001）。此外，植物性饮食指数和健康植物性饮食指数与匹兹堡睡眠质量指数得分呈负相关，而不健康植物性饮食指数与匹兹堡睡眠质量指数得分呈正相关。
我们发现不健康的植物性饮食与睡眠质量差显著相关。坚持总体植物性饮食，尤其是健康的植物性饮食，与最佳睡眠质量呈正相关。
