卷:114 | |
Tea consumption and mortality of all cancers, CVD and all causes: a meta-analysis of eighteen prospective cohort studies | |
Tang, Jun ; Zheng, Ju-Sheng ; Fang, Ling ; Jin, Yongxin ; Cai, Wenwen ; Li, Duo | |
关键词: Tea; Mortality; Cancers; CVD; All-cause mortality; Meta-analyses; | |
DOI : 10.1017/S0007114515002329 | |
学科分类:食品科学和技术 | |
【 摘 要 】
Epidemiological studies have demonstrated inconsistent associations between tea consumption and mortality of all cancers, CVD and all causes. To obtain quantitative overall estimates, we conducted a dose-response meta-analysis of prospective cohort studies. A literature search in PubMed and Embase up to April 2015 was conducted for all relevant papers published. Random-effects models were used to calculate pooled relative risks (RR) with 95 % CI. In eighteen prospective studies, there were 12 221, 11 306 and 55 528 deaths from all cancers, CVD and all causes, respectively. For all cancer mortality, the summary RR for the highest v. lowest category of green tea and black tea consumption were 1.06 (95 % CI 0.98, 1.15) and 0.79 (95 % CI 0.65, 0.97), respectively. For CVD mortality, the summary RR for the highest v. lowest category of green tea and black tea consumption were 0.67 (95 % CI 0.46, 0.96) and 0.88 (95 % CI 0.77, 1.01), respectively. For all-cause mortality, the summary RR for the highest v. lowest category of green tea and black tea consumption were 0.80 (95 % CI 0.68, 0.93) and 0.90 (95 % CI 0.83, 0.98), respectively. The dose-response analysis indicated that one cup per d increment of green tea consumption was associated with 5 % lower risk of CVD mortality and with 4 % lower risk of all-cause mortality. Green tea consumption was significantly inversely associated with CVD and all-cause mortality, whereas black tea consumption was significantly inversely associated with all cancer and all-cause mortality.
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