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. 2015 May 29;7(6):4154-69.
doi: 10.3390/nu7064154.

Dietary Patterns Derived by Cluster Analysis are Associated with Cognitive Function among Korean Older Adults

Jihye Kim  1 , Areum Yu  2 , Bo Youl Choi  3 , Jung Hyun Nam  4 , Mi Kyung Kim  5 , Dong Hoon Oh  6 , Yoon Jung Yang  7
Affiliations

Dietary Patterns Derived by Cluster Analysis are Associated with Cognitive Function among Korean Older Adults

Jihye Kim et al. Nutrients. .

Abstract

The objective of this study was to investigate major dietary patterns among older Korean adults through cluster analysis and to determine an association between dietary patterns and cognitive function. This is a cross-sectional study. The data from the Korean Multi-Rural Communities Cohort Study was used. Participants included 765 participants aged 60 years and over. A quantitative food frequency questionnaire with 106 items was used to investigate dietary intake. The Korean version of the MMSE-KC (Mini-Mental Status Examination-Korean version) was used to assess cognitive function. Two major dietary patterns were identified using K-means cluster analysis. The "MFDF" dietary pattern indicated high consumption of Multigrain rice, Fish, Dairy products, Fruits and fruit juices, while the "WNC" dietary pattern referred to higher intakes of White rice, Noodles, and Coffee. Means of the total MMSE-KC and orientation score of the participants in the MFDF dietary pattern were higher than those of the WNC dietary pattern. Compared with the WNC dietary pattern, the MFDF dietary pattern showed a lower risk of cognitive impairment after adjusting for covariates (OR 0.64, 95% CI 0.44-0.94). The MFDF dietary pattern, with high consumption of multigrain rice, fish, dairy products, and fruits may be related to better cognition among Korean older adults.

Keywords: cluster analysis; cognitive impairment; dietary pattern; older adults.

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Figures

Figure 1
Figure 1
Means of the total MMSE-KC, orientation, and memory scores across the two dietary patterns. MFDF: Multigrain rice, Fish, Dairy products, and Fruits & fruit juices; WNC: White rice, Noodles, and Coffee. All dietary patterns were adjusted for sex, alcohol consumption, regular exercise, and diabetes.
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