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Association between dietary diversity changes and frailty among Chinese older adults: findings from a nationwide cohort study.
- Source :
-
Nutrition journal [Nutr J] 2024 Aug 13; Vol. 23 (1), pp. 91. Date of Electronic Publication: 2024 Aug 13. - Publication Year :
- 2024
-
Abstract
- Background: Dietary diversity has been suggested as a potential preventive measure against frailty in older adults, but the effect of changes in dietary diversity on frailty is unclear. This study was conducted to examine the association between the dietary diversity score (DDS) and frailty among older Chinese adults.<br />Methods: A total of 12,457 adults aged 65 years or older were enrolled from three consecutive and nonoverlapping cohorts from the Chinese Longitudinal Healthy Longevity Survey (the 2002 cohort, the 2005 cohort, and the 2008 cohort). DDS was calculated based on nine predefined food groups, and DDS changes were assessed by comparing scores at baseline and the first follow-up survey. We used 39 self-reported health items to assess frailty. Cox proportional hazard models were performed to examine the association between DDS change patterns and frailty.<br />Results: Participants with low-to-low DDS had the highest frailty incidence (111.1/1000 person-years), while high-to-high DDS had the lowest (41.1/1000 person-years). Compared to the high-to-high group of overall DDS pattern, participants in other DDS change patterns had a higher risk of frailty (HRs ranged from 1.25 to 2.15). Similar associations were observed for plant-based and animal-based DDS. Compared to stable DDS changes, participants with an extreme decline in DDS had an increased risk of frailty, with HRs of 1.38 (1.24, 1.53), 1.31 (1.19, 1.44), and 1.29 (1.16, 1.43) for overall, plant-based, and animal-based DDS, respectively.<br />Conclusions: Maintaining a lower DDS or having a large reduction in DDS was associated with a higher risk of frailty among Chinese older adults. These findings highlight the importance of improving a diverse diet across old age for preventing frailty in later life.<br /> (© 2024. The Author(s).)
- Subjects :
- Humans
Aged
Female
Male
China epidemiology
Cohort Studies
Frail Elderly statistics & numerical data
Longitudinal Studies
Aged, 80 and over
Asian People statistics & numerical data
Proportional Hazards Models
Geriatric Assessment methods
Geriatric Assessment statistics & numerical data
East Asian People
Frailty epidemiology
Diet statistics & numerical data
Diet methods
Subjects
Details
- Language :
- English
- ISSN :
- 1475-2891
- Volume :
- 23
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Nutrition journal
- Publication Type :
- Academic Journal
- Accession number :
- 39138490
- Full Text :
- https://doi.org/10.1186/s12937-024-00997-3