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- Tea consumption and risk of all-cause, cardiovascular disease, and cancer mortality: a meta-analysis of thirty-eight prospective cohort data sets
- Youngyo Kim, Youjin Je
- Epidemiol Health. 2024;46:e2024056. Published online June 21, 2024
- DOI: https://doi.org/10.4178/epih.e2024056
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Abstract
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Supplementary Material -
AbstractOBJECTIVES
Tea consumption has been considered beneficial to human health because tea contains phytochemicals such as polyphenols and theaflavins. We conducted a systematic review and meta-analysis on the association between tea consumption and mortality from all causes, cardiovascular disease (CVD), and cancer to provide a quantitative assessment of current evidence.METHODSThe PubMed, Web of Science, and Scopus databases were searched through April 2024 to identify eligible studies. Random effects models were used to combine study-specific effect estimates (ESs).RESULTSA total of 38 prospective cohort data sets (from 27 papers) with 1,956,549 participants were included in this meta-analysis. The pooled ESs of the highest versus lowest categories of tea consumption were 0.90 (95% confidence interval [CI], 0.86 to 0.95) for all-cause mortality, 0.86 (95% CI, 0.79 to 0.94) for CVD mortality, and 0.90 (95% CI, 0.78 to 1.03) for cancer mortality. In the dose-response analysis, a non-linear association was observed. The greatest risk reductions were observed for the consumption of 2.0 cup/day for all-cause mortality (ES, 0.91; 95% CI, 0.88 to 0.94) and 1.5 cup/day for cancer mortality (ES, 0.92; 95% CI, 0.89 to 0.96), whereas additional consumption did not show a further reduction in the risk of death. A plateau was observed for CVD mortality at moderate consumption levels (1.5-3.0 cup/day), but a sustained reduction in mortality risk was observed at higher intake levels.CONCLUSIONSModerate tea consumption (e.g., 1.5-2.0 cup/day) was associated with lower all-cause, CVD, and cancer mortality compared to no tea consumption. Further well-designed prospective studies are needed for a definitive conclusion. -
SummaryKorean summary
차는 전세계적으로 널리 소비되는 음료로 그 공중보건학적 영향력이 크다. 차의 섭취와 만성질환의 관련성은 아직 일관성 있게 결론이 나지 않았는데 최근에 이 주제에 대하여 대규모의 코호트 연구 결과들이 발표된 바 있었다. 38개의 코호트 데이터에 근거한 본 메타분석의 결과는 하루 한 잔 반에서 두 잔의 차를 마시는 것이 총사망위험과 심혈관계질환이나 암으로 인한 사망 위험을 낮추는 것과 관계가 있음을 나타내고 있다.Key Message
Tea is a commonly consumed beverage worldwide and has a significant public health impact. The association between tea consumption and risk of mortality from chronic disease remains inconsistent, and extensive cohort studies have been published recently. In this meta-analysis, including thirty-eight cohort studies, people who drank one and a half to two cups of tea daily had a lower risk of mortality from all causes, cardiovascular disease, and cancer than those who drank less tea. -
Citations
Citations to this article as recorded by
- Molecular mechanisms of action of DIM and its clinical application
E. A. Nikitina, S. V. Orlova, T. T. Batysheva, N. V. Balashova, M. V. Alekseeva, A. N. Vodolazkaya, E. V. Prokopenko, Kh. A. Magomedova
Medical alphabet.2024; (19): 9. CrossRef
- Molecular mechanisms of action of DIM and its clinical application
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