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Green tea consumption and mortality among Japanese elderly people: the prospective Shizuoka elderly cohort.
Ann Epidemiol. 2009 Oct; 19(10):732-9.AE

Abstract

PURPOSE

To investigate the association between green tea consumption and mortality from all causes, cancer, and cardiovascular disease (CVD) among elderly people.

METHODS

In a population-based, prospective cohort study, a total of 14,001 elderly residents (aged 65-84 years), randomly chosen from all 74 municipalities in Shizuoka, Japan, completed questionnaires that included items about frequency of green tea consumption. They were followed for up to 6 years, from December 1999 to March 2006. Consequently, 12,251 subjects were analyzed to estimate the hazard ratios (HRs) for all-cause mortality, cancer, and CVD.

RESULTS

Among 64,002 person-years, 1,224 deaths were identified (follow-up rate, 71.6%). The multivariate HRs and 95% confidence intervals (CIs) for CVD mortality compared those who consumed seven or more cups per day with those who consumed less than one cup per day, were 0.24 (0.14-0.40), 0.30 (0.15-0.61), and 0.18 (0.08-0.40) for total participants, men, and women, respectively. Although green tea consumption was not inversely associated with cancer mortality, green tea consumption and colorectal cancer mortality were inversely associated with a moderate dose-response relationship.

CONCLUSIONS

Green tea consumption is associated with reduced mortality from all causes and CVD. This study also suggests that green tea could have protective effects against colorectal cancer.

Authors+Show Affiliations

Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan. etsuji-s@cc.okayama-u.ac.jpNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19628408

Citation

Suzuki, Etsuji, et al. "Green Tea Consumption and Mortality Among Japanese Elderly People: the Prospective Shizuoka Elderly Cohort." Annals of Epidemiology, vol. 19, no. 10, 2009, pp. 732-9.
Suzuki E, Yorifuji T, Takao S, et al. Green tea consumption and mortality among Japanese elderly people: the prospective Shizuoka elderly cohort. Ann Epidemiol. 2009;19(10):732-9.
Suzuki, E., Yorifuji, T., Takao, S., Komatsu, H., Sugiyama, M., Ohta, T., Ishikawa-Takata, K., & Doi, H. (2009). Green tea consumption and mortality among Japanese elderly people: the prospective Shizuoka elderly cohort. Annals of Epidemiology, 19(10), 732-9. https://doi.org/10.1016/j.annepidem.2009.06.003
Suzuki E, et al. Green Tea Consumption and Mortality Among Japanese Elderly People: the Prospective Shizuoka Elderly Cohort. Ann Epidemiol. 2009;19(10):732-9. PubMed PMID: 19628408.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Green tea consumption and mortality among Japanese elderly people: the prospective Shizuoka elderly cohort. AU - Suzuki,Etsuji, AU - Yorifuji,Takashi, AU - Takao,Soshi, AU - Komatsu,Hirokazu, AU - Sugiyama,Masumi, AU - Ohta,Toshiki, AU - Ishikawa-Takata,Kazuko, AU - Doi,Hiroyuki, Y1 - 2009/07/22/ PY - 2008/10/31/received PY - 2009/06/11/revised PY - 2009/06/11/accepted PY - 2009/7/25/entrez PY - 2009/7/25/pubmed PY - 2009/11/18/medline SP - 732 EP - 9 JF - Annals of epidemiology JO - Ann Epidemiol VL - 19 IS - 10 N2 - PURPOSE: To investigate the association between green tea consumption and mortality from all causes, cancer, and cardiovascular disease (CVD) among elderly people. METHODS: In a population-based, prospective cohort study, a total of 14,001 elderly residents (aged 65-84 years), randomly chosen from all 74 municipalities in Shizuoka, Japan, completed questionnaires that included items about frequency of green tea consumption. They were followed for up to 6 years, from December 1999 to March 2006. Consequently, 12,251 subjects were analyzed to estimate the hazard ratios (HRs) for all-cause mortality, cancer, and CVD. RESULTS: Among 64,002 person-years, 1,224 deaths were identified (follow-up rate, 71.6%). The multivariate HRs and 95% confidence intervals (CIs) for CVD mortality compared those who consumed seven or more cups per day with those who consumed less than one cup per day, were 0.24 (0.14-0.40), 0.30 (0.15-0.61), and 0.18 (0.08-0.40) for total participants, men, and women, respectively. Although green tea consumption was not inversely associated with cancer mortality, green tea consumption and colorectal cancer mortality were inversely associated with a moderate dose-response relationship. CONCLUSIONS: Green tea consumption is associated with reduced mortality from all causes and CVD. This study also suggests that green tea could have protective effects against colorectal cancer. SN - 1873-2585 UR - https://www.unboundmedicine.com/medline/citation/19628408/Green_tea_consumption_and_mortality_among_Japanese_elderly_people:_the_prospective_Shizuoka_elderly_cohort_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1047-2797(09)00165-3 DB - PRIME DP - Unbound Medicine ER -