Green Tea Consumption and the Risk of Incident Dementia in Elderly Japanese: The Ohsaki Cohort 2006 Study
Objective Biologic studies have shown that certain components of green tea may have protective effects on neurocognition. However, because of the lack of human epidemiologic studies, the impact of green tea consumption on the incidence of dementia has never been confirmed. The objective of this coho...
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| Veröffentlicht in: | The American journal of geriatric psychiatry 2016-10, Vol.24 (10), p.881-889 |
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| creator | Tomata, Yasutake, Ph.D Sugiyama, Kemmyo, M.D Kaiho, Yu, M.D Honkura, Kenji, M.D Watanabe, Takashi, M.D Zhang, Shu, B.Sc Sugawara, Yumi, Ph.D Tsuji, Ichiro, M.D., Ph.D |
| description | Objective Biologic studies have shown that certain components of green tea may have protective effects on neurocognition. However, because of the lack of human epidemiologic studies, the impact of green tea consumption on the incidence of dementia has never been confirmed. The objective of this cohort study was to clarify the association between green tea consumption and incident dementia. Methods In this 5.7-year prospective cohort study, using a questionnaire, information on daily green tea consumption and other lifestyle factors was collected from elderly Japanese individuals aged 65 years or more. Data on incident dementia were retrieved from the public Long-term Care Insurance Database. Results Among 13,645 participants, the 5.7-year rate of incident dementia was 8.7%. More frequent green tea consumption was associated with a lower risk of incident dementia (hazard ratio for ≥5 cups/day versus |
| doi_str_mv | 10.1016/j.jagp.2016.07.009 |
| format | Article |
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However, because of the lack of human epidemiologic studies, the impact of green tea consumption on the incidence of dementia has never been confirmed. The objective of this cohort study was to clarify the association between green tea consumption and incident dementia. Methods In this 5.7-year prospective cohort study, using a questionnaire, information on daily green tea consumption and other lifestyle factors was collected from elderly Japanese individuals aged 65 years or more. Data on incident dementia were retrieved from the public Long-term Care Insurance Database. Results Among 13,645 participants, the 5.7-year rate of incident dementia was 8.7%. More frequent green tea consumption was associated with a lower risk of incident dementia (hazard ratio for ≥5 cups/day versus <1 cup/day: 0.73; 95% confidence interval: 0.61–0.87). The lower risk of incident dementia was consistent even after selecting participants who did not have subjective memory complaints at the baseline. Conclusion Green tea consumption is significantly associated with a lower risk of incident dementia.</description><identifier>ISSN: 1064-7481</identifier><identifier>EISSN: 1545-7214</identifier><identifier>DOI: 10.1016/j.jagp.2016.07.009</identifier><identifier>PMID: 27594507</identifier><language>eng</language><publisher>England: Elsevier Inc</publisher><subject>Aged ; Cohort Studies ; cohort study ; dementia ; Dementia - epidemiology ; elderly ; Female ; Green tea ; Humans ; Incidence ; Internal Medicine ; Japan - epidemiology ; Male ; Proportional Hazards Models ; Prospective Studies ; Protective Factors ; Social Support ; Tea</subject><ispartof>The American journal of geriatric psychiatry, 2016-10, Vol.24 (10), p.881-889</ispartof><rights>The Authors</rights><rights>2016 The Authors</rights><rights>Copyright © 2016 The Authors. Published by Elsevier Inc. All rights reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c591t-d945d8a5d05bbdadd64f5c75cc57a4fa9cfad22e635a593ce1d02aebf75cf1833</citedby><cites>FETCH-LOGICAL-c591t-d945d8a5d05bbdadd64f5c75cc57a4fa9cfad22e635a593ce1d02aebf75cf1833</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27594507$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Tomata, Yasutake, Ph.D</creatorcontrib><creatorcontrib>Sugiyama, Kemmyo, M.D</creatorcontrib><creatorcontrib>Kaiho, Yu, M.D</creatorcontrib><creatorcontrib>Honkura, Kenji, M.D</creatorcontrib><creatorcontrib>Watanabe, Takashi, M.D</creatorcontrib><creatorcontrib>Zhang, Shu, B.Sc</creatorcontrib><creatorcontrib>Sugawara, Yumi, Ph.D</creatorcontrib><creatorcontrib>Tsuji, Ichiro, M.D., Ph.D</creatorcontrib><title>Green Tea Consumption and the Risk of Incident Dementia in Elderly Japanese: The Ohsaki Cohort 2006 Study</title><title>The American journal of geriatric psychiatry</title><addtitle>Am J Geriatr Psychiatry</addtitle><description>Objective Biologic studies have shown that certain components of green tea may have protective effects on neurocognition. However, because of the lack of human epidemiologic studies, the impact of green tea consumption on the incidence of dementia has never been confirmed. The objective of this cohort study was to clarify the association between green tea consumption and incident dementia. Methods In this 5.7-year prospective cohort study, using a questionnaire, information on daily green tea consumption and other lifestyle factors was collected from elderly Japanese individuals aged 65 years or more. Data on incident dementia were retrieved from the public Long-term Care Insurance Database. Results Among 13,645 participants, the 5.7-year rate of incident dementia was 8.7%. More frequent green tea consumption was associated with a lower risk of incident dementia (hazard ratio for ≥5 cups/day versus <1 cup/day: 0.73; 95% confidence interval: 0.61–0.87). The lower risk of incident dementia was consistent even after selecting participants who did not have subjective memory complaints at the baseline. Conclusion Green tea consumption is significantly associated with a lower risk of incident dementia.</description><subject>Aged</subject><subject>Cohort Studies</subject><subject>cohort study</subject><subject>dementia</subject><subject>Dementia - epidemiology</subject><subject>elderly</subject><subject>Female</subject><subject>Green tea</subject><subject>Humans</subject><subject>Incidence</subject><subject>Internal Medicine</subject><subject>Japan - epidemiology</subject><subject>Male</subject><subject>Proportional Hazards Models</subject><subject>Prospective Studies</subject><subject>Protective Factors</subject><subject>Social Support</subject><subject>Tea</subject><issn>1064-7481</issn><issn>1545-7214</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kUFv1DAQhS1ERUvLH-CAfOSS1HbseIMQElra0qpSpXY5W157wjqb2KmdIO2_x9EWDhw4zRzeezPzDULvKSkpofVlV3b651iy3JdEloQ0r9AZFVwUklH-Ovek5oXkK3qK3qbUEULqpuZv0CmTouGCyDPkbiKAxxvQeB18modxcsFj7S2edoAfXdrj0OJbb5wFP-FvMOTiNHYeX_UWYn_Ad3rUHhJ8wptsedglvXc5bRfihFmeiZ-m2R4u0Emr-wTvXuo5-nF9tVl_L-4fbm7XX-8LIxo6FTYvZldaWCK2W6utrXkrjBTGCKl5qxvTassY1JXQoqkMUEuYhm2bJS1dVdU5-njMHWN4niFNanDJQN_nHcOcFF0xkq8nvM5SdpSaGFKK0KoxukHHg6JELYhVpxbEakGsiFQZcTZ9eMmftwPYv5Y_TLPg81EA-cpfDqJKxoE3YF0EMykb3P_zv_xjN73zzuh-DwdIXZijz_wUVYkpop6WJy8_pnVFqJS8-g3voqG5</recordid><startdate>20161001</startdate><enddate>20161001</enddate><creator>Tomata, Yasutake, Ph.D</creator><creator>Sugiyama, Kemmyo, M.D</creator><creator>Kaiho, Yu, M.D</creator><creator>Honkura, Kenji, M.D</creator><creator>Watanabe, Takashi, M.D</creator><creator>Zhang, Shu, B.Sc</creator><creator>Sugawara, Yumi, Ph.D</creator><creator>Tsuji, Ichiro, M.D., Ph.D</creator><general>Elsevier Inc</general><scope>6I.</scope><scope>AAFTH</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20161001</creationdate><title>Green Tea Consumption and the Risk of Incident Dementia in Elderly Japanese: The Ohsaki Cohort 2006 Study</title><author>Tomata, Yasutake, Ph.D ; Sugiyama, Kemmyo, M.D ; Kaiho, Yu, M.D ; Honkura, Kenji, M.D ; Watanabe, Takashi, M.D ; Zhang, Shu, B.Sc ; Sugawara, Yumi, Ph.D ; Tsuji, Ichiro, M.D., Ph.D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c591t-d945d8a5d05bbdadd64f5c75cc57a4fa9cfad22e635a593ce1d02aebf75cf1833</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Aged</topic><topic>Cohort Studies</topic><topic>cohort study</topic><topic>dementia</topic><topic>Dementia - epidemiology</topic><topic>elderly</topic><topic>Female</topic><topic>Green tea</topic><topic>Humans</topic><topic>Incidence</topic><topic>Internal Medicine</topic><topic>Japan - epidemiology</topic><topic>Male</topic><topic>Proportional Hazards Models</topic><topic>Prospective Studies</topic><topic>Protective Factors</topic><topic>Social Support</topic><topic>Tea</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tomata, Yasutake, Ph.D</creatorcontrib><creatorcontrib>Sugiyama, Kemmyo, M.D</creatorcontrib><creatorcontrib>Kaiho, Yu, M.D</creatorcontrib><creatorcontrib>Honkura, Kenji, M.D</creatorcontrib><creatorcontrib>Watanabe, Takashi, M.D</creatorcontrib><creatorcontrib>Zhang, Shu, B.Sc</creatorcontrib><creatorcontrib>Sugawara, Yumi, Ph.D</creatorcontrib><creatorcontrib>Tsuji, Ichiro, M.D., Ph.D</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>The American journal of geriatric psychiatry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tomata, Yasutake, Ph.D</au><au>Sugiyama, Kemmyo, M.D</au><au>Kaiho, Yu, M.D</au><au>Honkura, Kenji, M.D</au><au>Watanabe, Takashi, M.D</au><au>Zhang, Shu, B.Sc</au><au>Sugawara, Yumi, Ph.D</au><au>Tsuji, Ichiro, M.D., Ph.D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Green Tea Consumption and the Risk of Incident Dementia in Elderly Japanese: The Ohsaki Cohort 2006 Study</atitle><jtitle>The American journal of geriatric psychiatry</jtitle><addtitle>Am J Geriatr Psychiatry</addtitle><date>2016-10-01</date><risdate>2016</risdate><volume>24</volume><issue>10</issue><spage>881</spage><epage>889</epage><pages>881-889</pages><issn>1064-7481</issn><eissn>1545-7214</eissn><abstract>Objective Biologic studies have shown that certain components of green tea may have protective effects on neurocognition. However, because of the lack of human epidemiologic studies, the impact of green tea consumption on the incidence of dementia has never been confirmed. The objective of this cohort study was to clarify the association between green tea consumption and incident dementia. Methods In this 5.7-year prospective cohort study, using a questionnaire, information on daily green tea consumption and other lifestyle factors was collected from elderly Japanese individuals aged 65 years or more. Data on incident dementia were retrieved from the public Long-term Care Insurance Database. Results Among 13,645 participants, the 5.7-year rate of incident dementia was 8.7%. More frequent green tea consumption was associated with a lower risk of incident dementia (hazard ratio for ≥5 cups/day versus <1 cup/day: 0.73; 95% confidence interval: 0.61–0.87). The lower risk of incident dementia was consistent even after selecting participants who did not have subjective memory complaints at the baseline. Conclusion Green tea consumption is significantly associated with a lower risk of incident dementia.</abstract><cop>England</cop><pub>Elsevier Inc</pub><pmid>27594507</pmid><doi>10.1016/j.jagp.2016.07.009</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Aged Cohort Studies cohort study dementia Dementia - epidemiology elderly Female Green tea Humans Incidence Internal Medicine Japan - epidemiology Male Proportional Hazards Models Prospective Studies Protective Factors Social Support Tea |
| title | Green Tea Consumption and the Risk of Incident Dementia in Elderly Japanese: The Ohsaki Cohort 2006 Study |
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