Association between Dietary Flavonoid Intake and the Likelihood of Frailty in Middle-Aged and Older Adults: A Population-Based Analysis from the National Health and Nutrition Examination Survey (NHANES).
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引用次数: 0
Abstract
Objectives: Flavonoids are of particular interest for their antioxidant property and anti-inflammatory, and a therapeutic potential for age-related diseases has been suggested. Frailty is becoming a global public health concern due to an increasingly aging population. We aimed to evaluate the association between dietary flavonoid intake and the likelihood of frailty in middle-aged and older adults.
Design: A US nationally representative cross-sectional study.
Setting: National Health and Nutrition Examination Surveys database.
Participants: Of the 8159 adults aged 50 years and older.
Measurements: This study used data from NHANES (2007-2010 and 2017-2018). Dietary flavonoid intake data were obtained from a 24-h recall interview. Frailty was measured using a 53-item frailty index (FI) and diagnosed as FI > 0.21. We used survey-weighted logistic regression models to assess the association between flavonoid intake and odds of having frailty. The dose-response association between flavonoid intake and frailty was estimated using a survey-weighted restricted cubic spline (RCS) model.
Results: Among the 8159 adults (63.42 ± 0.20 years), 2551 (31.3%) had frailty. The RCS depicted a U-shaped association between total flavonoid intake and frailty. Compared with those in the lowest quintile (≤14.55 mg/day), participants in the fourth total flavonoid intake quintile (84.13-313.51 mg/day) had the lowest likelihood of frailty with an OR (95% CI) of 0.65 (0.51-0.84). The likelihood of frailty decreased until 220 mg/day, with 2% (0.8%-4.1%) lower odds of frailty per 10 mg higher total flavonoid intake, which increased thereafter. Similarly, the U-shaped relation with frailty was observed for five flavonoid subclasses (flavan-3-ols, flavanones, flavones, flavonols, isoflavones), while a roughly negative linear relation was observed for the other flavonoid subclass (anthocyanidins).
Conclusion: U-shaped associations with frailty for dietary intake of total flavonoids and flavonoid subclasses (flavan-3-ols, flavanones, flavones, flavonols, and isoflavones) were observed in middle-aged and older US adults.
期刊介绍：
The Journal of Frailty & Aging is a peer-reviewed international journal aimed at presenting articles that are related to research in the area of aging and age-related (sub)clinical conditions. In particular, the journal publishes high-quality papers describing and discussing social, biological, and clinical features underlying the onset and development of frailty in older persons. The Journal of Frailty & Aging is composed by five different sections: - Biology of frailty and aging In this section, the journal presents reports from preclinical studies and experiences focused at identifying, describing, and understanding the subclinical pathophysiological mechanisms at the basis of frailty and aging. - Physical frailty and age-related body composition modifications Studies exploring the physical and functional components of frailty are contained in this section. Moreover, since body composition plays a major role in determining physical frailty and, at the same time, represents the most evident feature of the aging process, special attention is given to studies focused on sarcopenia and obesity at older age. - Neurosciences of frailty and aging The section presents results from studies exploring the cognitive and neurological aspects of frailty and age-related conditions. In particular, papers on neurodegenerative conditions of advanced age are welcomed. - Frailty and aging in clinical practice and public health This journal’s section is devoted at presenting studies on clinical issues of frailty and age-related conditions. This multidisciplinary section particularly welcomes reports from clinicians coming from different backgrounds and specialties dealing with the heterogeneous clinical manifestations of advanced age. Moreover, this part of the journal also contains reports on frailty- and age-related social and public health issues. - Clinical trials and therapeutics This final section contains all the manuscripts presenting data on (pharmacological and non-pharmacological) interventions aimed at preventing, delaying, or treating frailty and age-related conditions.The Journal of Frailty & Aging is a quarterly publication of original papers, review articles, case reports, controversies, letters to the Editor, and book reviews. Manuscripts will be evaluated by the editorial staff and, if suitable, by expert reviewers assigned by the editors. The journal particularly welcomes papers by researchers from different backgrounds and specialities who may want to share their views and experiences on the common themes of frailty and aging.The abstracting and indexing of the Journal of Frailty & Aging is covered by MEDLINE (approval by the National Library of Medicine in February 2016).
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