Association between tea consumption and cognitive impairment in middle-aged and older adults

Abstract Background Biologic studies have suggested that tea may have neuroprotective activity. However, tea’s protective effect on cognitive function is controversial in human epidemiological studies, and no data, including the middle-aged, are available. The objective of this study was to investig...

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Main Authors: Jia Zhang, Anxin Wang, Xiaoli Zhang, Shuohua Chen, Shouling Wu, Xingquan Zhao, Qian Zhang
Format: Article
Language:English
Published: BMC 2020-11-01
Series:BMC Geriatrics
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12877-020-01848-6
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author Jia Zhang
Anxin Wang
Xiaoli Zhang
Shuohua Chen
Shouling Wu
Xingquan Zhao
Qian Zhang
author_facet Jia Zhang
Anxin Wang
Xiaoli Zhang
Shuohua Chen
Shouling Wu
Xingquan Zhao
Qian Zhang
author_sort Jia Zhang
collection DOAJ
description Abstract Background Biologic studies have suggested that tea may have neuroprotective activity. However, tea’s protective effect on cognitive function is controversial in human epidemiological studies, and no data, including the middle-aged, are available. The objective of this study was to investigate the association of habit, frequency, and types of tea consumption with incident cognitive impairment in middle-aged and older adults. Methods Data from the Asymptomatic Polyvascular Abnormalities in Community study were used (aged over 40y). We gathered information on tea consumption, including habit, frequency, and types, via a standardized questionnaire and assessed cognitive function by Mini-Mental State Examination (MMSE) and/or Montreal Cognitive Assessment (MoCA). Three thousand eight hundred sixty-eight and 806 participants were selected in MMSE and MoCA subgroups. Multivariate logistic regression models were utilized to examine associations between tea consumption and cognitive impairment in middle-aged and older participants. Results In MMSE analyses, after adjustment for potential confounding factors, habitual (odds ratio (OR) 0.47, [95% confidence interval (CI) 0.33–0.68], p < 0.001) and high frequency (p trend < 0.001) of tea intake were associated with a lower risk of cognitive impairment. The risk of cognitive impairment was lower in green tea consumption (OR 0.36, [95% CI 0.22–0.61], p < 0.001) than other types (OR 0.59, [95% CI 0.38–0.91], p = 0.017). In MoCA analyses, we got similar results. Conclusions Habitual tea consumption, especially high-frequency and green tea consumption, was significantly associated with a lower prevalence of cognitive impairment in middle-aged and older individuals.
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spelling doaj.art-6640658529e045fab6e08d4466e2ac332022-12-22T01:20:20ZengBMCBMC Geriatrics1471-23182020-11-012011910.1186/s12877-020-01848-6Association between tea consumption and cognitive impairment in middle-aged and older adultsJia Zhang0Anxin Wang1Xiaoli Zhang2Shuohua Chen3Shouling Wu4Xingquan Zhao5Qian Zhang6Department of Neurology, Beijing Tiantan Hospital, Capital Medical UniversityDepartment of Neurology, Beijing Tiantan Hospital, Capital Medical UniversityDepartment of Neurology, Beijing Tiantan Hospital, Capital Medical UniversityDepartment of Cardiology, Kailuan Hospital, North China University of Science and TechnologyDepartment of Cardiology, Kailuan Hospital, North China University of Science and TechnologyDepartment of Neurology, Beijing Tiantan Hospital, Capital Medical UniversityDepartment of Neurology, Beijing Tiantan Hospital, Capital Medical UniversityAbstract Background Biologic studies have suggested that tea may have neuroprotective activity. However, tea’s protective effect on cognitive function is controversial in human epidemiological studies, and no data, including the middle-aged, are available. The objective of this study was to investigate the association of habit, frequency, and types of tea consumption with incident cognitive impairment in middle-aged and older adults. Methods Data from the Asymptomatic Polyvascular Abnormalities in Community study were used (aged over 40y). We gathered information on tea consumption, including habit, frequency, and types, via a standardized questionnaire and assessed cognitive function by Mini-Mental State Examination (MMSE) and/or Montreal Cognitive Assessment (MoCA). Three thousand eight hundred sixty-eight and 806 participants were selected in MMSE and MoCA subgroups. Multivariate logistic regression models were utilized to examine associations between tea consumption and cognitive impairment in middle-aged and older participants. Results In MMSE analyses, after adjustment for potential confounding factors, habitual (odds ratio (OR) 0.47, [95% confidence interval (CI) 0.33–0.68], p < 0.001) and high frequency (p trend < 0.001) of tea intake were associated with a lower risk of cognitive impairment. The risk of cognitive impairment was lower in green tea consumption (OR 0.36, [95% CI 0.22–0.61], p < 0.001) than other types (OR 0.59, [95% CI 0.38–0.91], p = 0.017). In MoCA analyses, we got similar results. Conclusions Habitual tea consumption, especially high-frequency and green tea consumption, was significantly associated with a lower prevalence of cognitive impairment in middle-aged and older individuals.http://link.springer.com/article/10.1186/s12877-020-01848-6Cognitive impairmentTea consumptionMiddle-aged adultsOlder adults
spellingShingle Jia Zhang
Anxin Wang
Xiaoli Zhang
Shuohua Chen
Shouling Wu
Xingquan Zhao
Qian Zhang
Association between tea consumption and cognitive impairment in middle-aged and older adults
BMC Geriatrics
Cognitive impairment
Tea consumption
Middle-aged adults
Older adults
title Association between tea consumption and cognitive impairment in middle-aged and older adults
title_full Association between tea consumption and cognitive impairment in middle-aged and older adults
title_fullStr Association between tea consumption and cognitive impairment in middle-aged and older adults
title_full_unstemmed Association between tea consumption and cognitive impairment in middle-aged and older adults
title_short Association between tea consumption and cognitive impairment in middle-aged and older adults
title_sort association between tea consumption and cognitive impairment in middle aged and older adults
topic Cognitive impairment
Tea consumption
Middle-aged adults
Older adults
url http://link.springer.com/article/10.1186/s12877-020-01848-6
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