Dietary pattern analysis is an emerging approach to investigate the association between diet and frailty. This study examined the association of dietary patterns with frailty in 2724 Chinese community-dwelling men and women aged ≥ 65 years. Baseline dietary data were collected using a food frequency questionnaire between 2001 and 2003. Adherence to a priori dietary patterns, including the Diet Quality Index-International (DQI-I) and the Mediterranean Diet Score (MDS) was assessed. Factor analysis identified three a posteriori dietary patterns, namely “vegetables-fruits”, “snacks-drinks-milk products”, and “meat-fish”. Incident frailty was defined using the FRAIL scale. Binary logistic regression was applied to examine the associations between dietary patterns and four-year incident frailty. There were 31 (1.1%) incident frailty cases at four years. Every 10-unit increase in DQI-I was associated with 41% reduced risk of frailty in the sex- and age-adjusted model (odds ratio (OR) (95% confidence interval (CI)): 0.59 (0.42–0.85), p = 0.004). The association attenuated in the multivariate adjusted model (0.69 (0.47–1.02), p = 0.056). No association between other dietary patterns and incident frailty was observed. Our study showed that a better diet quality as characterized by higher DQI-I was associated with lower odds of developing frailty. The contribution of MDS or a posteriori dietary patterns to the development of frailty in Chinese older people remains to be explored.
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机译:饮食模式分析是研究饮食与虚弱之间关系的一种新兴方法。这项研究调查了2724岁≥65岁的中国社区男女饮食结构与虚弱的关系。在2001年至2003年之间使用食物频率问卷收集了基线饮食数据。评估了其对先验饮食模式的坚持性,包括国际饮食质量指数(DQI-1)和地中海饮食评分(MDS)。因子分析确定了三种后验饮食方式,即“蔬菜-水果”,“零食-饮料-奶制品”和“肉-鱼”。使用FRAIL量表定义事件脆弱性。二元逻辑回归用于检验饮食模式与四年突发性体弱之间的关系。四年中有31起(1.1%)事件脆弱性案例。在性别和年龄调整后的模型中,DQI-1的每增加10个单位,就会使脆弱风险降低41%(优势比(OR)(95%置信区间(CI)):0.59(0.42-0.85), p = 0.004)。在多变量调整模型中,关联性减弱(0.69(0.47–1.02),p = 0.056)。没有观察到其他饮食模式和脆弱的事件之间的关联。我们的研究表明,以较高的DQI-I为特征的更好的饮食质量与较低的身体虚弱几率相关。 MDS或后验饮食方式对中国老年人体弱发育的贡献尚待探索。
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