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, Wei; Li, Duo

doi:10.1017/s0007114515002329

Cited by 112 publications

(80 citation statements)

References 45 publications

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“…Although both tea and coffee consumption have been linked to reduced metabolic syndrome and mortality risk in prior studies, 45-47 the present findings did not support this association. The putative health benefits of unsweetened coffees and teas may stem from certain compounds (e.g., antioxidants 48 ), or because, like artificially sweetened beverages (e.g., diet soda), they may displace high-calorie beverages from the diet.…”

Section: Discussioncontrasting

confidence: 99%

Beverage Intake and Metabolic Syndrome Risk Over 14 Years: The Study of Women's Health Across the Nation

Appelhans¹,

Baylin²,

Huang³

et al. 2017

Journal of the Academy of Nutrition and Dietetics

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Background Alcohol and energy-dense beverage consumption have been implicated in cardiometabolic disease, albeit inconsistently. Objective This study tested prospective associations between intakes of alcohol, energy-dense beverages, and low-calorie beverages and cardiometabolic risk in midlife women. Design The Study of Women's Health Across the Nation is a 14-year, multisite prospective cohort study (1996-2011). Beverage intake and cardiometabolic risk factors that define the metabolic syndrome (hypertension, abdominal obesity, impaired fasting glucose, low high-density lipoprotein cholesterol, and hypertriglyceridemia) were assessed throughout follow-up. Participants/setting Participants (N=1,448) were African-American, Chinese, Japanese, and non-Hispanic white midlife women from six U.S. cities. Main outcome measures The primary outcomes were incident metabolic syndrome and the individual metabolic syndrome components. Statistical analyses performed Generalized linear mixed models tested associations between intakes within each beverage category and odds of meeting criteria for metabolic syndrome and each of the metabolic syndrome components. Results Energy-dense beverage consumption was highest among African-American women, and lowest among women with college degrees. Non-Hispanic white women consumed the largest quantities of alcohol. Independent of energy intake and potential confounders, each additional 355 ml of energy-dense beverages consumed per day was associated with higher odds of developing metabolic syndrome in each successive year of follow-up (OR=1.05, 95%CI: 1.02, 1.08). Greater energy-dense beverage intake was associated with more rapidly increasing odds of developing hypertension (OR=1.06, 95%CI: 1.02, 1.11) and abdominal obesity (OR=1.10, 95%CI: 1.03, 1.16) over time, but not with the other metabolic syndrome components. Intakes of alcohol and low-calorie coffees, teas, and diet cola were not associated with metabolic syndrome risk. Conclusions Over 14 years of follow-up, energy-dense non-alcoholic beverage consumption was associated with incident metabolic syndrome in midlife women. The observed differences in intakes by ethnicity/race and education suggest that consumption of these beverages may contribute to disparities in risk factors for diabetes and cardiovascular disease.

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Section: Discussioncontrasting

confidence: 99%

Beverage Intake and Metabolic Syndrome Risk Over 14 Years: The Study of Women's Health Across the Nation

Appelhans¹,

Baylin²,

Huang³

et al. 2017

Journal of the Academy of Nutrition and Dietetics

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“…This inverse association was more evident in women than in men [41]. No association was reported for cancer mortality.…”

Section: Discussionmentioning

confidence: 81%

Association of green tea consumption with mortality from all-cause, cardiovascular disease and cancer in a Chinese cohort of 165,000 adult men

Liu

Zhou

et al. 2016

Eur J Epidemiol

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Tea is the most ancient and popular beverage in the world, and its beneficial health effects has attracted tremendous attention worldwide. However, the prospective evidence relating green tea consumption to total and cause-specific mortality is still limited and inconclusive. We recruited 164,681 male participants free of pre-existing disease during 1990-1991, with green tea consumption and other covariates assessed by the standardized questionnaire and mortality follow up continued until 2006 (mean 11 years; total person-years: 1,961,791). Cox regression analyses were used to quantify the associations of green tea consumption with all-cause (n = 32,700), CVD (n = 11,839) and cancer (n = 7002) mortality, adjusting simultaneously for potential confounders. At baseline, 18 % reported regular consumption of green tea. Compared with non-green tea drinkers, regular drinkers had significantly lower all-cause mortality, with adjusted hazard ratios (HRs) being 0.94 (95 % CI 0.89, 0.99) for ≤5 g/day, 0.95 (0.91, 0.99) for 5-10 g/day and 0.89 (0.85, 0.93) for >10 g/day. For CVD mortality, the corresponding HRs were 0.93 (0.85, 1.01) 0.91 (0.85, 0.98) and 0.86 (0.79, 0.93), respectively, while for cancer they were 0.86 (0.78, 0.98), 0.92 (0.83, 1.00) and 0.79 (0.71, 0.88), respectively. The patterns of these associations varied by smoking, alcohol drinking and locality. This large prospective study shows that regular green tea consumption is associated with significantly reduced risk of death from all-cause, CVD and cancer among Chinese adults.

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“…10 Data regarding the relationship between tea and cancer are inconsistent. Tea consumption has been inversely associated with all cancers and all-cause mortality; 27 nevertheless, meta-analyses suggested an inverse association of high tea consumption (mainly green tea) only with oral, bladder cancer, leukemia and myeloid malignancies, while less clear data were found for other cancers. 24,[28][29][30] Correlation with esophageal cancer remains unclear, too, with data on a protective effect of green tea, especially in studies conducted among Chinese population, 25 or a risk reduction only for subgroups of patients such as females.…”

Section: Discussionmentioning

confidence: 93%

Association between coffee or tea drinking and Barrett’s esophagus or esophagitis: an Italian study

et al. 2017

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BACKGROUND/OBJECTIVES: Only a few papers have treated of the relationship between Barrett's esophagus (BE) or erosive esophagitis (E) and coffee or tea intake. We evaluated the role of these beverages in BE and E occurrence. SUBJECTS/METHODS: Patients with BE (339), E (462) and controls (619) were recruited. Data on coffee and tea and other individual characteristics were collected using a structured questionnaire. RESULTS: BE risk was higher in former coffee drinkers, irrespective of levels of exposure (cup per day; ⩽ 1: OR = 3.76, 95% CI 1.33-10.6; 41: OR = 3.79, 95% CI 1.31-11.0; test for linear trend (TLT) P = 0.006) and was higher with duration (430 years: OR = 4.18, 95% CI 1.43-12.3; TLT P = 0.004) and for late quitters, respectively (⩽3 years from cessation: OR = 5.95, 95% CI 2.19-16.2; TLT P o 0.001). The risk of BE was also higher in subjects who started drinking coffee later (age 418 years: OR = 6.10, 95% CI 2.15-17.3). No association was found in current drinkers, but for an increased risk of E in light drinkers (o 1 cup per day OR = 1.85, 95% CI 1.00-3.43). A discernible risk reduction of E (about 20%, not significant) and BE (about 30%, P o 0.05) was observed in tea drinkers. CONCLUSIONS: Our data were suggestive of a reduced risk of BE and E with tea intake. An adverse effect of coffee was found among BE patients who had stopped drinking coffee. Coffee or tea intakes could be indicative of other lifestyle habits with protective or adverse impact on esophageal mucosa.

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Tea consumption and mortality of all cancers, CVD and all causes: a meta-analysis of eighteen prospective cohort studies

Cited by 112 publications

References 45 publications

Beverage Intake and Metabolic Syndrome Risk Over 14 Years: The Study of Women's Health Across the Nation

Beverage Intake and Metabolic Syndrome Risk Over 14 Years: The Study of Women's Health Across the Nation

Association of green tea consumption with mortality from all-cause, cardiovascular disease and cancer in a Chinese cohort of 165,000 adult men

Association between coffee or tea drinking and Barrett’s esophagus or esophagitis: an Italian study

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