Abstract:

Objective To explore the prevalence of cognitive dysfunction in the elderly in Tianjin City and its association with dietary patterns，and to provide dietary suggestions for the prevention of cognitive dysfunction. Methods Study subjects were 1 473 elderly individuals aged ≥60 years who were re-surveyed in 2024，originating from the Tianjin subpopulation of the 2015 Surveillance of Chronic Diseases and Nutrition in Chinese Adults. Factor analysis was used to extract dietary patterns，factor scores were calculated for each dietary pattern of the survey subjects，the scores were divided into four levels（Q1，Q2，Q3，Q4） from low to high quartiles，and multivariate Logistic regression was used to analyze the association between cognitive dysfunction and dietary patterns. Results A total of 1 473 subjects were included in this study，including 154（10.45%） with cognitive dysfunction，and the result of the factor analysis KMO test was 0.756，and four dietary patterns were obtained：meat-aquatic product mode，potato and bean algae mode，vegetable fruit and egg mode，and cereal and potato mode. Multivariate Logistic regression analysis revealed that compared with the Q1 group，the Q3 and Q4 subgroups of the cereal and potato mode were negatively correlated with cognitive dysfunction，with OR of 0.578（95%CI：0.354-0.944） and 0.506（95%CI：0.305-0.837）. The vegetable fruit and egg mode was also negatively correlated with cognitive dysfunction（Q2：Q1，OR=0.579，95%CI：0.345-0.970）. Conclusion It is recommended that the elderly increase their intake of whole grains，potatoes，various soy products，mushrooms，kelp and seaweed.

Key words: Elderly population, Cognitive dysfunction, Dietary patterns, Relevance