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Dietary Diversity Was Positively Associated with Psychological Resilience among Elders: A Population-Based Study

1
Division of Non-Communicable Diseases Control and Community Health, Chinese Center for Disease Control and Prevention, Beijing 102206, China
2
Department of Sociology & Anthropology, Department of Human Development & Family Studies, University of Rhode Island, Kingston, RI 02881, USA
3
Duke Molecular Physiology Institute and Division of Rheumatology, Department of Medicine, Duke University School of Medicine, Durham, NC 27701, USA
4
Institute of Environmental Health and Related Product Safety, Chinese Center for Disease Control and Prevention, Beijing 100021, China
5
Center for the study of Aging and Human Development and the Geriatric Division of School of Medicine, Duke University, Durham, NC 27701, USA
6
Center for Healthy Aging and Development Studies, National School of Development, Peking University, Beijing 100871, China
*
Authors to whom correspondence should be addressed.
Nutrients 2019, 11(3), 650; https://doi.org/10.3390/nu11030650
Received: 31 January 2019 / Revised: 10 March 2019 / Accepted: 11 March 2019 / Published: 18 March 2019
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Abstract

The association between dietary diversity (DD) and psychological resilience among older people is an underdeveloped area of research. This cross-sectional study explored the associations of DD with psychological resilience among 8571 community-based elderly individuals. The intake frequencies of food groups were collected, and dietary diversity was assessed based on the mean DD score. Psychological resilience was assessed using a simplified resilience score (SRS). Data were analyzed using multiple linear regression and logistic regression models. Poor DD was significantly associated with psychological resilience, with a β (95% CI) of −0.94 (−1.07, −0.81) for the SRS (p < 0.01) and an odds ratio (95% CI) of 1.83 (1.66, 2.01) for low SRS status. The interaction effects of age with DD were observed for the SRS (p < 0.001) and low SRS status (p < 0.001). Based on separate analyses by age group, the association of a low SRS with poor DD was more prominent in the younger elderly than the oldest old, with OR (95% CI) 2.32 (1.96, 2.74) and 1.61 (1.43, 1.82), respectively. Compared with younger participants with good DD, the risk of a low SRS was greater for younger participants with poor DD, the oldest old with good DD, and the oldest old with poor DD, with OR (95% CI) 2.39 (2.02, 2.81), 1.28 (1.09, 1.51), and 2.03 (1.72, 2.39), respectively. The greatest contribution to DD was from a high consumption of vegetables, fruits, and nuts. Our study suggested that poor DD was associated with a low psychological resilience among the Chinese elderly, especially the younger elderly. These findings suggest that augmentation of DD might promote psychological resilience. View Full-Text
Keywords: dietary diversity; psychological resilience; elderly; oldest old dietary diversity; psychological resilience; elderly; oldest old
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Yin, Z.; Brasher, M.S.; Kraus, V.B.; Lv, Y.; Shi, X.; Zeng, Y. Dietary Diversity Was Positively Associated with Psychological Resilience among Elders: A Population-Based Study. Nutrients 2019, 11, 650.

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