Behnaz Shakersain1, Giola Santoni2, Susanna C Larsson3, Gerd Faxén-Irving4, Johan Fastbom2, Laura Fratiglioni5, Weili Xu6. 1. Aging Research Center, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, Stockholm, Sweden. Electronic address: behnaz.shakersain@ki.se. 2. Aging Research Center, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, Stockholm, Sweden. 3. Unit of Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden. 4. Division of Clinical Geriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Huddinge, Sweden. 5. Aging Research Center, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, Stockholm, Sweden; Stockholm Gerontology Research Center, Stockholm, Sweden. 6. Aging Research Center, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, Stockholm, Sweden; Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China. Electronic address: weili.xu@ki.se.
Abstract
INTRODUCTION: The influence of mixed dietary patterns on cognitive changes is unknown. METHODS: A total of 2223 dementia-free participants aged ≥60 were followed up for 6 years to examine the impact of dietary patterns on cognitive decline. Mini-mental state examination (MMSE) was administered. Diet was assessed by a food frequency questionnaire. By factor analysis, Western and prudent dietary patterns emerged. Mixed-effect models for longitudinal data with repeated measurements were used. RESULTS: Compared with the lowest adherence to each pattern, the highest adherence to prudent pattern was related to less MMSE decline (β = 0.106, P = .011), whereas the highest adherence to Western pattern was associated with more MMSE decline (β = -0.156, P < .001). The decline associated with Western diet was attenuated when accompanied by high adherence to prudent pattern. DISCUSSION: High adherence to prudent diet may diminish the adverse effects of high adherence to Western diet on cognitive decline.
INTRODUCTION: The influence of mixed dietary patterns on cognitive changes is unknown. METHODS: A total of 2223 dementia-free participants aged ≥60 were followed up for 6 years to examine the impact of dietary patterns on cognitive decline. Mini-mental state examination (MMSE) was administered. Diet was assessed by a food frequency questionnaire. By factor analysis, Western and prudent dietary patterns emerged. Mixed-effect models for longitudinal data with repeated measurements were used. RESULTS: Compared with the lowest adherence to each pattern, the highest adherence to prudent pattern was related to less MMSE decline (β = 0.106, P = .011), whereas the highest adherence to Western pattern was associated with more MMSE decline (β = -0.156, P < .001). The decline associated with Western diet was attenuated when accompanied by high adherence to prudent pattern. DISCUSSION: High adherence to prudent diet may diminish the adverse effects of high adherence to Western diet on cognitive decline.
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