scholarly journals Sex differences in the association between green tea consumption and hypertension in elderly Chinese adults

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Xiaodong Peng ◽  
Mengxia Zhang ◽  
Xuesi Wang ◽  
Kui Wu ◽  
Yukun Li ◽  
...  
Keyword(s):  
Sex Differences ◽  
Green Tea ◽  
Secondary Analysis ◽  
Tea Consumption ◽  
Chinese Adults ◽  
Logistic Regression Models ◽  
Healthy Longevity ◽  
Elderly Chinese ◽  
Ancient Times ◽  
Tea Drinking

Abstract Background Green tea has been one of the most popular beverages in China since ancient times. Mixed results concerning the effect of green tea consumption on the incidence of hypertension have been published over the past decades. However, no previous studies have focused on longevous individuals in China and the sex differences in the association between habitual green tea intake and hypertension. Methods The data extracted from the database of the Chinese Longitudinal Healthy Longevity Survey (CLHLS) in 2018 were used for a secondary analysis. Logistic regression models were employed to examine the odds ratio (OR) of daily green tea consumption on the incidence of hypertension by sex. Results A total of 9277 individuals were included in the analysis (39.8% were men). The included individuals had a mean age of 80.9 and 84.8 years for those who drank green tea daily and those who had never, respectively (p <  0.001). The incidence of hypertension varied at baseline according to green tea drinking habit and sex. For women who had a habitual green tea intake or had never drunk green tea, the incidence of hypertension was 47.3 and 43.9%, respectively (p = 0.241), whereas it was 51.6 and 39.7% for men (p <  0.001). After adjusting for potential confounders, a 38% increase in the risk of hypertension was observed in men who consumed green tea daily (OR, 1.38; 95% CI, 1.15–1.67; p <  0.001). Conclusions Chinese longevous men had a 38% higher risk of developing hypertension when drinking green tea daily. However, no effect of green tea consumption on the incidence of hypertension in women was found. More attention should be paid to the lifestyle of longevous individuals for health promotion, and a sex-specific approach to deliver care for very elderly people is warranted.

scholarly journals Type of Tea Consumption and Depressive Symptoms in Older Adults

2020 ◽  
Author(s):  
Yao Yao ◽  
Huashuai Chen ◽  
Lele Chen ◽  
Sang-Yhun Ju ◽  
Huazhen Yang ◽  
...  
Keyword(s):  
Mental Health ◽  
Depressive Symptoms ◽  
Green Tea ◽  
Sensitivity Analyses ◽  
Tea Consumption ◽  
Healthy Longevity ◽  
Prevalence Of Depression ◽  
Different Types ◽  
Health Related ◽  
Tea Drinking

Abstract BackgroundExisting research indicates that tea drinking may exert beneficiary effects on mental health. However, associations between different types of tea intake and mental health such as depression are not fully examined. The purpose of this study was to examine the associations of green tea, fermented tea, and flowering tea consumption with depressive symptoms.MethodsWe used data from the 2018 wave of Chinese Longitudinal Healthy Longevity Survey. The type (green, fermented [black, Oolong, white, yellow, dark, and compressed teas], and flower) and frequency of tea consumption and depressive symptoms for 13,115 participants were assessed. We examined the associations between type and frequency of tea intake and depression, controlling for a set of demographic, socioeconomic, psychosocial, behavioral, and health-related variables. ResultsOverall, intake of green tea, fermented tea, and flower tea were all significantly associated with a lower prevalence of depression, independent of other risk factors. Compared with the group for no tea intake, the adjusted ORs for daily green tea, fermented tea, and flower tea intake were 0.85 (0.76-0.95), 0.87 (0.76-0.99), and 0.70 (0.59-0.82), respectively. Linear associations were observed between frequency of all types of tea intake with depressive symptoms (Ps for trend<0.05). The associations of type and frequency of tea intake and depressive symptoms were robust in several sensitivity analyses.ConclusionsAmong Chinese old adults, regularly consumed any type of tea (green, fermented or flower) were less likely to show depressive symptoms, the associations seemed more pronounced among flower tea and green tea drinkers.

scholarly journals Type of Tea Consumption and Mild Cognition Impairment in Older Adults

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 296-296
Author(s):  
Yao Yao ◽  
Huashuai Chen ◽  
Danan Gu ◽  
Yi Zeng
Keyword(s):  
Green Tea ◽  
Mini Mental State Examination ◽  
Sociodemographic Factors ◽  
Tea Consumption ◽  
Cognitive Health ◽  
Logistic Regressions ◽  
Nationally Representative ◽  
Tea Drinking ◽  
Cognition Impairment ◽  
State Examination

Abstract Existing studies have testified the neuroprotective qualities of tea. As there are several types of tea, question on which type of tea may exert substantial influence on cognitive health is intriguing and remains unknow. We aim to estimate the association between type of tea consumption and mild cognition impairment (MCI) using a nationally representative dataset of older population in China. Type of tea consumption was classified as three groups: Green, fermented (White, Oolong, Black, and Pu’eh), and flower tea. The Mini-Mental State Examination (MMSE) was adopted to assess cognitive function. We conducted multivariate logistic regressions to evaluate the association between type of tea drinking and cognition outcomes (MMSE score and MCI). Potential confounders including sociodemographic factors, health conditions, dietary patterns, lifestyles, activities of daily living, mental health, and living environments. A total of 10,923 participants (mean age: 85.4 yr; female: 53.5%) included in the study. The type of current tea consumption among the participants were: 2143 for green tea, 1302 for fermented tea, and 844 for flower tea. Compared to those who had no habit of tea consumption, the odds ratio of MCI in green tea drinkers was 0.80 (0.68-0.95), in fermented tea drinkers was 1.07 (0.89-1.30), and in flower tea drinkers were 0.85 (0.67-1.09). Our study showed green tea and flower tea consumption associated with lower odds of MCI, while the association was not found among fermented tea drinkers. Future experimental and longitudinal studies are warranted to illustrate the association between varied type of tea and cognitive health.

scholarly journals Daily tea drinking is not associated with newly diagnosed non-alcoholic fatty liver disease in Chinese adults: the Tianjin chronic low-grade systemic inflammation and health cohort study

2019 ◽  
Vol 18 (1) ◽  
Author(s):  
Yang Xia ◽  
Xuena Wang ◽  
Shunmin Zhang ◽  
Qing Zhang ◽  
Li Liu ◽  
...  
Keyword(s):  
Black Tea ◽  
Cross Sectional Study ◽  
Low Grade ◽  
Tea Consumption ◽  
Newly Diagnosed ◽  
Chinese Adults ◽  
Cross Sectional ◽  
Alcoholic Fatty Liver ◽  
Tea Drinking ◽  
Health Cohort Study

Abstract Background Previous studies have reported that tea extract supplementation has potential benefits on the risk factors of non-alcoholic fatty liver disease (NAFLD); however, no study has investigated the direct effect of daily tea consumption on the prevalence of NAFLD in the general population. This cross-sectional study aimed to evaluate the associations between tea consumption and the prevalence of newly diagnosed NAFLD among Chinese adults. Methods The present cross-sectional study was based on the Tianjin Chronic Low-grade Systemic Inflammation and Health Cohort Study. In total, 19,350 participants were enrolled in the analyses. Tea consumption was assessed via a self-administered food frequency questionnaire. NAFLD was diagnosed via liver ultrasonography and no history of heavy alcohol intake. Logistic regression analysis was used to estimate the associations between tea consumption and the prevalence of NAFLD. Results Consumption of green tea, oolong tea, and black tea were positively associated with the prevalence of newly diagnosed NAFLD before adjustments. Compared with the participants who never drink tea, the odds ratios (95% confidence interval) of newly diagnosed NAFLD in the highest categories (≥ 1 cup/day) of green tea, oolong tea, black tea, and jasmine tea were 1.48 (1.33, 1.65), 1.50 (1.33, 1.68), and 1.28 (1.13, 1.46), and 1.36 (1.20, 1.54) before adjustments, respectively. However, no significant association was found between tea consumption and the prevalence of NAFLD after adjusting for socio-demographic, behavioural, anthropometric, dietary, and clinical confounding factors. Conclusion There is no significant association between daily tea drinking and newly-diagnosed NAFLD in general Chinese adults.

scholarly journals Habitual tea consumption and 5-year incident metabolic syndrome among older adults: a community-based cohort study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Xing-Xuan Dong ◽  
Rui-Rui Wang ◽  
Jie-Yu Liu ◽  
Qing-Hua Ma ◽  
Chen-Wei Pan
Keyword(s):  
Metabolic Syndrome ◽  
Cumulative Incidence ◽  
Density Lipoprotein ◽  
High Body Mass Index ◽  
Tea Consumption ◽  
Chinese Adults ◽  
Logistic Regression Models ◽  
Aged Population ◽  
Prospective Association ◽  
Older Chinese

Abstract Background The effect of tea consumption on metabolic syndrome (MetS) remains controversial. The objective of this study is to examine the prospective association of tea consumption with 5-year incident MetS among aged population in China. Methods This analysis included 3005 Chinese adults aged 60 years or older who were free of MetS at baseline examination. MetS was defined according to the National Cholesterol Education Program-Adult Treatment Panel III. Information regarding tea consumption was collected via an interviewer-administrated questionnaire. The prospective associations between tea consumption at baseline and 5-year incident MetS, as well as its individual components, were assessed by multiple logistic regression models. Results Of the 3005 participants free of MetS at baseline, 406 participants (cumulative incidence: 13.5%) developed MetS at the 5-year follow-up examination. In multiple logistic regressions, 5-year cumulative incidence of MetS was found to be higher in those who drank tea more than 5 times per week as compared with non-habitual drinkers (OR = 1.38, 95% CI: 1.05-1.82; P = 0.02). This relationship still existed in men (OR = 1.43, 95%CI: 1.00-2.01; P = 0.05) when stratified by gender. Among the five major components of MetS, low high-density lipoprotein cholesterol was observed in men, while high body mass index, elevated blood pressure and the presence of diabetes mellitus were significant in women. Conclusions High-frequent tea consumption increased the risk of MetS among older Chinese adults. These findings may add novel knowledge to the current studies regarding the controversial effect of tea consumption on cardiovascular and metabolic health among the aged population.

scholarly journals Tea consumption and risk of stroke in Chinese adults: a prospective cohort study of 0.5 million men and women

2019 ◽  
Author(s):  
Tian Tian ◽  
Jun Lv ◽  
Guangfu Jin ◽  
Canqing Yu ◽  
Yu Guo ◽  
...  
Keyword(s):  
Cohort Study ◽  
Green Tea ◽  
Large Scale ◽  
Tea Consumption ◽  
Chinese Adults ◽  
National Health Insurance System ◽  
Mortality And Morbidity ◽  
Stroke Type ◽  
Incident Cases

ABSTRACT Background Many cohort studies have explored the relation between tea consumption and stroke risk; however, the conclusions have been inconsistent. In addition, evidence is lacking in China, where the patterns of tea consumption and main types of tea consumed differ substantially from those in high-income countries. Objective We aimed to systematically assess the association of tea consumption with the risk of stroke based on a Chinese large-scale cohort study. Methods A total of 487,377 participants from the China Kadoorie Biobank were included in the present study. Detailed information about tea consumption (including frequency, duration, amount, and tea type) was self-reported at baseline. After ∼4.3 million person-years of follow-up, 38,727 incident cases of stroke were recorded, mainly through linkage with mortality and morbidity registries and based on the national health insurance system. Results Overall, 128,280 adults (26.3%) reported drinking tea almost daily (41.4% men, 15.9% women), predominantly green tea (86.7%). Tea consumption had an inverse and dose–response relation with the risk of stroke (Ptrend < 0.001). Compared with nonconsumers, those who consumed tea occasionally, weekly, and daily had adjusted HRs and 95% CIs of 0.96 (0.94, 0.99), 0.94 (0.90, 0.98), and 0.92 (0.89, 0.95) respectively, with little difference by stroke type. Among those who consumed tea daily, the HRs for stroke decreased with the increasing duration and amount of tea consumed (all P < 0.001). These inverse associations were significant for green tea but not for other types of tea. Among men, but not women, the inverse relations could be detected, and similar inverse associations could be found for male noncurrent alcohol-consumers and noncurrent smokers as well. Conclusions Among Chinese adults, higher consumption of tea, especially green tea, was associated with a lower risk of ischemic and hemorrhagic stroke.

scholarly journals Habitual Tea Consumption and Risk of Fracture in 0.5 Million Chinese Adults: A Prospective Cohort Study

Nutrients ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1633 ◽  
Author(s):  
Qian Shen ◽  
Canqing Yu ◽  
Yu Guo ◽  
Zheng Bian ◽  
Nanbo Zhu ◽  
...  
Keyword(s):  
Hip Fracture ◽  
Green Tea ◽  
Lower Risk ◽  
Local Health ◽  
Tea Consumption ◽  
Chinese Adults ◽  
Insurance Claim ◽  
Risk Of Fracture ◽  
First Time

Background: Tea consumption may have favorable effects on risk of fracture. However, little is known about such association in Chinese adults. The aim of this study was to examine the association between tea consumption and risk of hospitalized fracture in Chinese adults. Methods: The present study included 453,625 participants from the China Kadoorie Biobank (CKB). Tea consumption was self-reported at baseline. Hospitalized fractures were ascertained through linkage with local health insurance claim databases. The results: During a median of 10.1 years of follow-up, we documented 12,130 cases of first-time any fracture hospitalizations, including 1376 cases of hip fracture. Compared with never tea consumers, daily tea consumption was associated with lower risk of any fracture (hazard ratio (HR): 0.88; 95% confidence interval (CI): 0.83, 0.93). Statistically significant reduced risk of hip fracture was shown among daily consumers who most commonly drank green tea (HR: 0.80; 95% CI: 0.65, 0.97) and those who had drunk tea for more than 30 years (HR: 0.68; 95% CI: 0.52, 0.87). Our conclusions: Habitual tea consumption was associated with moderately decreased risk of any fracture hospitalizations. Participants with decades of tea consumption and those who preferred green tea were also associated with lower risk of hip fracture.

scholarly journals Habitual Tea Consumption and 5-year Incident Metabolic Syndrome Among Older Adults: A Community-based Cohort Study

2020 ◽  
Author(s):  
jieyu liu ◽  
Ruirui Wang ◽  
Jinghong Liu ◽  
Qinghua Ma ◽  
Yong Xu ◽  
...  
Keyword(s):  
Metabolic Syndrome ◽  
Density Lipoprotein ◽  
High Body Mass Index ◽  
Tea Consumption ◽  
Chinese Adults ◽  
Logistic Regression Models ◽  
Aged Population ◽  
Increased Risk ◽  
Prospective Association ◽  
Older Chinese

Abstract Background: The effect of tea consumption on metabolic syndrome (MetS) remains controversial. The objective of this study is to examine the prospective association of tea consumption with 5-year incident MetS among aged population in China.Methods: This analysis included 3005 Chinese adults aged 60 years or older who were free of MetS at baseline examination. MetS was defined according to the National Cholesterol Education Program-Adult Treatment Panel III. Information regarding tea consumption was collected via an interviewer-administrated questionnaire. The prospective associations between tea consumption at baseline and 5-year incident MetS, as well as its individual components, were assessed by multiple logistic regression models.Results: In multiple logistic regressions, habitual drinkers had a 34% increased risk of developing MetS during the 5-year follow-up period compared with non-habitual drinkers. Correspondingly, 5-year cumulative incidence of MetS was found to be higher in those who drank tea more than 5 times per week as compared with non-habitual drinkers. Among the five major components of MetS, low high-density lipoprotein cholesterol was observed in men, while high body mass index, elevated blood pressure and the presence of diabetes mellitus were significant in women.Conclusions: Habitual tea consumption increased the risk of MetS among older Chinese adults. These findings may add novel knowledge to the current studies regarding the controversial effect of tea consumption on cardiovascular and metabolic health among the aged population.

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