AI Article Synopsis
- The study aimed to explore how drinking green tea affects death rates from all causes, cancer, and cardiovascular disease (CVD) in older adults.
- Researchers followed 14,001 elderly residents in Shizuoka, Japan, over six years, analyzing the link between their green tea habits and mortality rates.
- The results indicated that high green tea consumption significantly lowered the risk of death from CVD, while also suggesting a potential protective effect against colorectal cancer, though not for other types of cancer.
Article 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.
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| http://dx.doi.org/10.1016/j.annepidem.2009.06.003 | DOI Listing |
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