TY - JOUR
T1 - Dietary diversity and frailty among older Chinese people
T2 - evidence from the Chinese Longitudinal Healthy Longevity Study
AU - Wang, Xiao Meng
AU - Zhong, Wen Fang
AU - Li, Zhi Hao
AU - Chen, Pei Liang
AU - Zhang, Yu Jie
AU - Ren, Jiao Jiao
AU - Liu, Dan
AU - Shen, Qiao Qiao
AU - Yang, Pei
AU - Song, Wei Qi
AU - Liang, Fen
AU - Nan, Ying
AU - Xiang, Jia Xuan
AU - Wu, Yin Ru
AU - Lv, Yue Bin
AU - Gao, Xiang
AU - Kraus, Virginia Byers
AU - Shi, Xiao Ming
AU - Mao, Chen
N1 - Publisher Copyright:
© 2022 American Society for Nutrition
PY - 2023/2
Y1 - 2023/2
N2 - Background: Dietary diversity is widely advocated as a means to promote health, but little is known regarding whether the beneficial effects still apply in older adults. Objective: To examine the association between the dietary diversity score (DDS) and frailty among older Chinese adults. Methods: A total of 13,721 adults aged ≥65 y without frailty at baseline were enrolled. The DDS at baseline was constructed based on 9 items of a food frequency questionnaire. We used 39 self-reported health items to construct a frailty index (FI), with FI ≥ 0.25 indicating frailty. Cox models with restricted cubic splines were used to evaluate the dose–response relationships of DDS (continuous) with frailty. In addition, Cox proportional hazard models were used to examine the association between DDS (categorized as scores ≤4, 5–6, 7, and ≥8) and frailty. Results: During the mean follow-up of 5.94 y, 5250 participants met the criteria for frailty. Each 1-unit increase in DDS corresponded to a 5% lower risk of frailty (hazard ratio [HR]; 0.95; 95% CI: 0.94, 0.97]. Compared with participants with DDS ≤4 points, those with a DDS of 5–6, 7, and ≥8 points exhibited a lower frailty risk, with HRs of 0.79 (95% CI: 0.71, 0.87), 0.75 (95% CI: 0.68, 0.83), and 0.74 (95% CI: 0.67, 0.81), respectively (P-trend < 0.001). Protein-rich food items, such as meat; eggs; and beans, were associated with protective effects against frailty. In addition, a significant association was observed between higher consumption of 2 high-frequency foods, tea and fruits, and lower risk of frailty. Conclusions: A higher DDS was associated with a lower risk of frailty among older Chinese adults. This study highlights the importance of a diverse diet as a potential modifiable behavioral factor for preventing frailty in older Chinese adults.
AB - Background: Dietary diversity is widely advocated as a means to promote health, but little is known regarding whether the beneficial effects still apply in older adults. Objective: To examine the association between the dietary diversity score (DDS) and frailty among older Chinese adults. Methods: A total of 13,721 adults aged ≥65 y without frailty at baseline were enrolled. The DDS at baseline was constructed based on 9 items of a food frequency questionnaire. We used 39 self-reported health items to construct a frailty index (FI), with FI ≥ 0.25 indicating frailty. Cox models with restricted cubic splines were used to evaluate the dose–response relationships of DDS (continuous) with frailty. In addition, Cox proportional hazard models were used to examine the association between DDS (categorized as scores ≤4, 5–6, 7, and ≥8) and frailty. Results: During the mean follow-up of 5.94 y, 5250 participants met the criteria for frailty. Each 1-unit increase in DDS corresponded to a 5% lower risk of frailty (hazard ratio [HR]; 0.95; 95% CI: 0.94, 0.97]. Compared with participants with DDS ≤4 points, those with a DDS of 5–6, 7, and ≥8 points exhibited a lower frailty risk, with HRs of 0.79 (95% CI: 0.71, 0.87), 0.75 (95% CI: 0.68, 0.83), and 0.74 (95% CI: 0.67, 0.81), respectively (P-trend < 0.001). Protein-rich food items, such as meat; eggs; and beans, were associated with protective effects against frailty. In addition, a significant association was observed between higher consumption of 2 high-frequency foods, tea and fruits, and lower risk of frailty. Conclusions: A higher DDS was associated with a lower risk of frailty among older Chinese adults. This study highlights the importance of a diverse diet as a potential modifiable behavioral factor for preventing frailty in older Chinese adults.
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U2 - 10.1016/j.ajcnut.2022.11.017
DO - 10.1016/j.ajcnut.2022.11.017
M3 - Article
C2 - 36811562
AN - SCOPUS:85149428034
SN - 0002-9165
VL - 117
SP - 383
EP - 391
JO - American Journal of Clinical Nutrition
JF - American Journal of Clinical Nutrition
IS - 2
ER -