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Lower risk of incident dementia among Chinese older adults having three servings of vegetables and two servings of fruits a day.
Age Ageing. 2017 09 01; 46(5):773-779.AA

Abstract

Background

dietary modification can potentially reduce dementia risk, but the importance of fruits and the amount of vegetables and fruits required for cognitive maintenance are uncertain. We examined whether the minimal daily requirement of vegetables and fruits recommended by the World Health Organization (WHO) would independently lower dementia risk.

Methods

in this population-based observational study, we examined the diet of 17,700 community-living dementia-free Chinese older adults who attended the Elderly Health Centres in Hong Kong at baseline and followed their cognitive status for 6 years. In line with the WHO recommendation, we defined the cutoff for minimal intake of vegetables and fruits as at least three and two servings per day, respectively. The study outcome was incident dementia in 6 years. Dementia was defined by presence of clinical dementia in accordance with the 10th revision of the International Statistical Classification of Diseases and Related Health Problems (ICD-10) or Clinical Dementia Rating of 1-3.

Results

multivariable logistic regression analysis showed that the estimated odds ratios for incident dementia were 0.88 (95% confidence interval 0.73-1.06; P = 0.17) for those consuming at least three servings of vegetables per day, 0.86 (0.74-0.99; P < 0.05) for those consuming at least two servings of fruits per day and 0.75 (0.60-0.95; P = 0.02) for those consuming at least these amounts of both at baseline, after adjusting for age, gender, education, major chronic diseases, physical exercise and smoking.

Conclusion

having at least three servings of vegetables and two servings of fruits daily might help prevent dementia in older adults.

Authors+Show Affiliations

Department of Psychiatry, The Chinese University of Hong Kong, Hong Kong.MRC Unit for Lifelong Health and Ageing at UCL, UK.Department of Psychiatry, The University of Hong Kong, Hong Kong.Department of Psychiatry, The Chinese University of Hong Kong, Hong Kong.Elderly Health Service, Department of Health, Hong Kong.Department of Psychiatry, The Chinese University of Hong Kong, Hong Kong.

Pub Type(s)

Journal Article
Observational Study

Language

eng

PubMed ID

28338708

Citation

Lee, Allen T C., et al. "Lower Risk of Incident Dementia Among Chinese Older Adults Having Three Servings of Vegetables and Two Servings of Fruits a Day." Age and Ageing, vol. 46, no. 5, 2017, pp. 773-779.
Lee ATC, Richards M, Chan WC, et al. Lower risk of incident dementia among Chinese older adults having three servings of vegetables and two servings of fruits a day. Age Ageing. 2017;46(5):773-779.
Lee, A. T. C., Richards, M., Chan, W. C., Chiu, H. F. K., Lee, R. S. Y., & Lam, L. C. W. (2017). Lower risk of incident dementia among Chinese older adults having three servings of vegetables and two servings of fruits a day. Age and Ageing, 46(5), 773-779. https://doi.org/10.1093/ageing/afx018
Lee ATC, et al. Lower Risk of Incident Dementia Among Chinese Older Adults Having Three Servings of Vegetables and Two Servings of Fruits a Day. Age Ageing. 2017 09 1;46(5):773-779. PubMed PMID: 28338708.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Lower risk of incident dementia among Chinese older adults having three servings of vegetables and two servings of fruits a day. AU - Lee,Allen T C, AU - Richards,Marcus, AU - Chan,Wai C, AU - Chiu,Helen F K, AU - Lee,Ruby S Y, AU - Lam,Linda C W, PY - 2016/07/10/received PY - 2017/01/18/accepted PY - 2017/3/25/pubmed PY - 2018/5/15/medline PY - 2017/3/25/entrez KW - dementia KW - fruits KW - healthy diet KW - nutrition KW - older people KW - vegetables SP - 773 EP - 779 JF - Age and ageing JO - Age Ageing VL - 46 IS - 5 N2 - Background: dietary modification can potentially reduce dementia risk, but the importance of fruits and the amount of vegetables and fruits required for cognitive maintenance are uncertain. We examined whether the minimal daily requirement of vegetables and fruits recommended by the World Health Organization (WHO) would independently lower dementia risk. Methods: in this population-based observational study, we examined the diet of 17,700 community-living dementia-free Chinese older adults who attended the Elderly Health Centres in Hong Kong at baseline and followed their cognitive status for 6 years. In line with the WHO recommendation, we defined the cutoff for minimal intake of vegetables and fruits as at least three and two servings per day, respectively. The study outcome was incident dementia in 6 years. Dementia was defined by presence of clinical dementia in accordance with the 10th revision of the International Statistical Classification of Diseases and Related Health Problems (ICD-10) or Clinical Dementia Rating of 1-3. Results: multivariable logistic regression analysis showed that the estimated odds ratios for incident dementia were 0.88 (95% confidence interval 0.73-1.06; P = 0.17) for those consuming at least three servings of vegetables per day, 0.86 (0.74-0.99; P < 0.05) for those consuming at least two servings of fruits per day and 0.75 (0.60-0.95; P = 0.02) for those consuming at least these amounts of both at baseline, after adjusting for age, gender, education, major chronic diseases, physical exercise and smoking. Conclusion: having at least three servings of vegetables and two servings of fruits daily might help prevent dementia in older adults. SN - 1468-2834 UR - https://www.unboundmedicine.com/medline/citation/28338708/Lower_risk_of_incident_dementia_among_Chinese_older_adults_having_three_servings_of_vegetables_and_two_servings_of_fruits_a_day_ L2 - https://academic.oup.com/ageing/article-lookup/doi/10.1093/ageing/afx018 DB - PRIME DP - Unbound Medicine ER -