Zhang Huanting, He Jianan, You Xianwen, Liu Xingyou, Zhou Wenhao, Shen Jie
Key Laboratory of Micro-Nano Sensing and IoT of Wenzhou, Wenzhou Institute of Hangzhou Dianzi University, Wenzhou, 325038, China.
HDU-ITMO Joint Institute, Hangzhou Dianzi University, Hangzhou, 310018, China.
Eur Geriatr Med. 2025 May 24. doi: 10.1007/s41999-025-01234-8.
To investigate the independent and comprehensive association between plant-based diets and activities of daily living (ADL) in older Chinese individuals, we conducted a longitudinal study to evaluate the relationship between the plant-based diet index (PDI) and ADL in this population.
This study included 18,670 participants (women [proportion]: 9899 [53.0%]) who were able to independently conduct ADL at baseline in the 1998-2018 China Longitudinal Survey of Health and Longevity (CLHLS). The Cox proportional hazard model was used to test the association between a plant-based diet and activities of daily living-related disabilities.
At baseline, the median age of all participants was 83 years old. Taking Q1 as the reference value, the hazard ratios (HR) for quartiles Q2, Q3, and Q4 were 1.080 [95% confidence interval (CI) 1.018-1.147], 1.086 (95% CI 1.007-1.181), and 1.110 (95% CI 1.038-1.187), respectively. This indicated that a higher PDI might have had adverse effects on ADL. Adjustments have been made to the potential inclusion population and data processing strategies, as well as to the frequency of intake based on nutritional factors. Subsequently, it was found that the obtained results were consistent with the preliminary analysis.
This study found that a higher plant-based diet was associated with an increased risk of disability in daily activities, while the intake of meat and fish was associated with a decreased risk. These findings highlight the importance of dietary balance in plant-based diets.
为了研究植物性饮食与中国老年人日常生活活动能力（ADL）之间的独立和综合关联，我们进行了一项纵向研究，以评估该人群中植物性饮食指数（PDI）与ADL之间的关系。
本研究纳入了18670名参与者（女性[比例]：9899名[53.0%]），他们在1998 - 2018年中国健康与养老追踪调查（CLHLS）基线时能够独立进行ADL。采用Cox比例风险模型来检验植物性饮食与日常生活活动相关残疾之间的关联。
在基线时，所有参与者的中位年龄为83岁。以第一四分位数（Q1）作为参考值，第二、第三和第四四分位数的风险比（HR）分别为1.080[95%置信区间（CI）1.018 - 1.147]、1.086（95%CI 1.007 - 1.181）和1.110（95%CI 1.038 - 1.187）。这表明较高的PDI可能对ADL有不利影响。已对潜在纳入人群和数据处理策略以及基于营养因素的摄入频率进行了调整。随后发现，所得结果与初步分析一致。
本研究发现，较高的植物性饮食与日常活动残疾风险增加相关，而肉类和鱼类的摄入与风险降低相关。这些发现凸显了植物性饮食中饮食平衡的重要性。
