■关于中国老年人中植物性食物摄入频率与心血管疾病(CVD)风险之间关系的研究有限。本研究旨在评估植物性膳食指数(PDI)与心血管疾病风险之间的关系。为中国老年人通过增加植物性食物消费频率来降低心血管疾病风险提供证据。
■本研究分析了2011-2018年中国纵向健康长寿调查(CLHLS)的数据,采用多变量改进的泊松回归模型,趋势测试,和约束三次样条(RCS)分析,以评估PDI和CVD风险之间的线性和非线性关系。进行亚组分析和相互作用测试以评估结果的稳健性和群体特异性。
■这项研究共纳入1,414名中国老年人,在后续行动结束时,487名参与者发展为CVD。多变量改进的Poisson回归模型显示PDI与CVD风险之间呈负相关[RR=0.983,95CI=(0.970,0.997)]。同样,多变量趋势检验(p=0.031)和RCS分析(非线性的P=0.600)表明PDI和CVD风险之间存在线性关系.亚组分析显示,PDI与CVD风险之间的关系不受性别的影响,BMI,吸烟,酒精使用,或锻炼。
■PDI与CVD风险呈负相关,这表明增加饮食中植物性食物摄入的频率可能会降低中国老年人的心血管疾病风险。
UNASSIGNED: There is limited research on the relationship between the frequency of plant-based food intake and the risk of cardiovascular disease (CVD) among elderly Chinese. This study aims to evaluate the association between plant-based dietary index (PDI) and CVD risks, providing evidence for elderly Chinese to reduce CVD risks by increasing the frequency of plant-based food consumption.
UNASSIGNED: This study analyzed data from the Chinese Longitudinal Healthy Longevity Survey (CLHLS) 2011-2018, employing a multivariate modified Poisson regression model, trend tests, and restricted cubic spline (RCS) analysis to assess the linear and non-linear relationship between the PDI and CVD risks. Subgroup analyses and interaction tests were conducted to evaluate the robustness and population-specificity of the results.
UNASSIGNED: This study included a total of 1,414 elderly Chinese, and at the end of follow-up, 487 participants had developed CVD. The multivariate modified Poisson regression model revealed a negative association between PDI and CVD risks [RR = 0.983, 95%CI = (0.970, 0.997)]. Similarly, the multivariate trend test (p = 0.031) and RCS analysis (P for nonlinear = 0.600) indicated a linear relationship between PDI and CVD risks. Subgroup analyses showed that the relationship between PDI and CVD risk was not influenced by gender, BMI, smoking, alcohol use, or exercise.
UNASSIGNED: The PDI was negatively correlated with CVD risks, indicating that increasing the frequency of plant-based food intake in the diet may reduce CVD risks among elderly Chinese.