scholarly journals Green tea consumption in everyday life and mental health

2005 ◽  
Vol 8 (8) ◽  
pp. 1300-1306 ◽  
Author(s):  
Mari Shimbo ◽  
Keiko Nakamura ◽  
Hui Jing Shi ◽  
Masashi Kizuki ◽  
Kaoruko Seino ◽  
...  
Keyword(s):  
Mental Health ◽  
Everyday Life ◽  
Green Tea ◽  
General Health Questionnaire ◽  
Black Tea ◽  
Population Based ◽  
Cross Sectional Study ◽  
Caffeine Intake ◽  
Tea Consumption ◽  
Cross Sectional

AbstractObjectiveGreen tea has been widely acknowledged in Japan to induce a pleasurable mental feeling. Recent laboratory studies have suggested positive psychological effects as a result of consuming green tea. The present study examined whether green tea consumption in everyday life in Japan is associated with positive mental health.DesignA cross-sectional study was performed in February–March 2002.Setting and subjectsThe subjects of the study consisted of a general population of 600 Japanese aged 20–69 years. Responses of 380 subjects, obtained by home-visit interview, were analysed. The questionnaire inquired about consumption of brewed green tea and other beverages, perceived mental health status, lifestyle and others. The 12-item General Health Questionnaire (GHQ 12) was used for the assessment of mental ill-health (GHQ score ≥4).ResultsAfter adjustments for age, area, perceived mental stress, lifestyle and daily caffeine intake, the consumption of brewed green tea was not statistically associated with any decrease in risk of mental ill-health among either males or females (odds ratio (OR) = 0.78, 95% confidence interval (CI) = 0.47–1.29 for males; OR = 0.77, 95% CI = 0.51–1.14 for females). Daily caffeine intake (100 mg) inclusive of green tea, black tea, coffee and other caffeine-containing beverages was associated with a higher risk of mental ill-health among females (OR = 1.26, 95% CI = 1.01–1.56).ConclusionsThe results provide population-based evidence on the consumption of brewed green tea in everyday life and mental health, together with information on consumption patterns of various beverages and lifestyles.

scholarly journals Tea consumption and oxidative stress: a cross-sectional analysis of 889 premenopausal women from the Sister Study

2019 ◽  
Vol 121 (5) ◽  
pp. 582-590 ◽  
Author(s):  
Dongyu Zhang ◽  
Kelly Ferguson ◽  
Melissa A. Troester ◽  
Jeannette T. Bensen ◽  
Jianwen Cai ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Green Tea ◽  
Geometric Mean ◽  
Premenopausal Women ◽  
Black Tea ◽  
Cross Sectional Study ◽  
Tea Consumption ◽  
Cross Sectional ◽  
High Level ◽  
And Oxidative Stress

AbstractIn experimental and clinical studies, green or black tea consumption has been shown to reduce oxidative stress. However, these studies involved high levels of tea consumption and may not reflect patterns in the general population. Here, we examined the association between black or green tea consumption and oxidative stress in a cross-sectional study of 889 premenopausal US women aged 35–54 years. Tea consumption was measured using the Block-98 FFQ. Urinary 8-iso-PGF2α (F2-IsoP) and 2,3-dinor-5,6-dihydro-15-F2t-isoprostane (15-F2t-IsoP-M) were used as biomarkers of oxidative stress. These compounds were measured by MS and normalised to creatinine. Linear regression was used to calculate the geometric mean differences (GMD) and 95% CI for log-transformed urinary F2-IsoP or 15-F2t-IsoP-M in relation to black or green tea consumption. We further examined whether adjusting for caffeine impacted associations between tea and oxidative stress. Geometric means of urinary F2-IsoP and 15-F2t-IsoP-M were 1·44 (95% CI 1·39, 1·49) and 0·71 (95% CI 0·69, 0·73) ng/mg creatinine, respectively. Overall, green tea consumption was not associated with urinary F2-IsoP or 15-F2t-IsoP-M. High-level black tea consumption (≥5 cups/week compared with 0) was associated with higher 15-F2t-IsoP-M concentrations (adjusted GMD=0·10, 95 % CI 0·02–0.19) but not F2-IsoP. Adjusting for caffeine nullified the association between black tea and 15-F2t-IsoP-M. Our findings do not support the hypothesis that dietary tea consumption is inversely associated with oxidative stress.

scholarly journals Green tea consumption and cognitive function: a cross-sectional study from the Tsurugaya Project

2006 ◽  
Vol 83 (2) ◽  
pp. 355-361 ◽  
Author(s):  
Shinichi Kuriyama ◽  
Atsushi Hozawa ◽  
Kaori Ohmori ◽  
Taichi Shimazu ◽  
Toshifumi Matsui ◽  
...  
Keyword(s):  
Cognitive Function ◽  
Green Tea ◽  
Cross Sectional Study ◽  
Tea Consumption ◽  
Sectional Study ◽  
Cross Sectional

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 Delays to diagnosis among people with severe mental illness in rural Vietnam, a population-based cross-sectional survey

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Trang Nguyen ◽  
Thach Tran ◽  
Sally Green ◽  
Arthur Hsueh ◽  
Tuan Tran ◽  
...  
Keyword(s):  
Mental Health ◽  
Mental Illness ◽  
Severe Mental Illness ◽  
Financial Burden ◽  
National Policy ◽  
Mental Health Program ◽  
Population Based ◽  
Cross Sectional Study ◽  
Cross Sectional Survey ◽  
Cross Sectional

Abstract Background People with severe mental illness (SMI) living in low and middle-income countries can experience extended delays to diagnosis, which hinder access to medical treatment. The aims of this study were to describe the interval to diagnosis among these people in rural Vietnam and its associated factors. Methods A population-based cross-sectional study was conducted among people with SMI in two provinces in Vietnam. The delay to diagnosis was defined as the time between the first abnormal behaviour being observed by family members and the formal diagnosis of psychosis. A multilevel linear regression was used to examine the factors associated with the delay to diagnosis. Results Among 404 people with SMI from 370 households, the median delay to diagnosis was 11.5 months (IQR 0–168.0). Overall, 53.7% had a delay to diagnosis of less than one year (95% CI: 48.81–58.54). The financial burden of these people on their families was nearly USD 470/year. After adjusting for other factors at individual and household levels, living in a Northern province; older age, and having psychotic diagnosis before the implementation of the National Community Mental Health program (2003) were associated with a delay of more than twelve months to diagnosis. Conclusions These data indicate that the implementation of a national policy for community-based care has been effective in reducing the delay to diagnosis in rural Vietnam. Therefore, there is a need for strengthening the program and mental health policies, focusing on public communication to improve mental health literacy and reduce stigma against SMI.

scholarly journals Psychosocial and coping responses toward 2019 coronavirus diseases (COVID-19): a cross-sectional study within the Chinese general population

QJM ◽  
2020 ◽  
Vol 113 (10) ◽  
pp. 731-738 ◽  
Author(s):  
Q Li
Keyword(s):  
Mental Health ◽  
General Population ◽  
Psychiatric Disorders ◽  
General Health Questionnaire ◽  
Cross Sectional Study ◽  
Psychological Status ◽  
Sectional Study ◽  
Cross Sectional ◽  
Health Crisis ◽  
And Coping

Summary Background The 2019 coronavirus diseases (COVID-19) led out the mental health crisis. Aim To determine the psychological status and post-traumatic stress symptoms (PTSD) among general population (except confirmed and suspected cases, and close contacts) and their association with the coping strategy types during the COVID-19 outbreak. Design A cross-sectional study. Methods Participants were recruited from the community through snowball sampling with anonymous online questionnaires, using 28-item General Health Questionnaire, 22-item Impact of Events Scale-Revised and 28-item Brief Coping Inventory to measure their psychiatric disorders, PTSD level and coping strategies. Results Of the total 1109 participants, 42.65% and 67.09% self-reported psychiatric disorders and high PTSD level, respectively. Age, occupation and education level were significantly association with psychological status. The status of psychiatric disorders was also significantly related to high PTSD level. Using both emotion and problem coping was better for psychiatric status [adjusted odds ratio (aOR) = 0.72, 95% confidence interval (CI): 0.54–0.98], and problem-focused coping was significantly associated with high PTSD level (aOR = 2.09, 95% CI: 1.25–3.51). Conclusion Negative psychological outcomes were common among the general people during the COVID-19 outbreak, and the findings may provide references for intervention guidelines of mental health for the community population.

scholarly journals Employment Precariousness and Poor Mental Health: Evidence from Spain on a New Social Determinant of Health

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Alejandra Vives ◽  
Marcelo Amable ◽  
Montserrat Ferrer ◽  
Salvador Moncada ◽  
Clara Llorens ◽  
...  
Keyword(s):  
Mental Health ◽  
Evidence Base ◽  
Population Based ◽  
Cross Sectional Study ◽  
Social Determinant ◽  
Poor Mental Health ◽  
Cross Sectional ◽  
Precarious Employment ◽  
Prevalence Proportion ◽  
Permanent Workers

Background.Evidence on the health-damaging effects of precarious employment is limited by the use of one-dimensional approaches focused on employment instability. This study assesses the association between precarious employment and poor mental health using the multidimensional Employment Precariousness Scale.Methods.Cross-sectional study of 5679 temporary and permanent workers from the population-based Psychosocial Factors Survey was carried out in 2004-2005 in Spain. Poor mental health was defined as SF-36 mental health scores below the 25th percentile of the Spanish reference for each respondent’s sex and age. Prevalence proportion ratios (PPRs) of poor mental health across quintiles of employment precariousness (reference: 1st quintile) were calculated with log-binomial regressions, separately for women and men.Results.Crude PPRs showed a gradient association with poor mental health and remained generally unchanged after adjustments for age, immigrant status, socioeconomic position, and previous unemployment. Fully adjusted PPRs for the 5th quintile were 2.54 (95% CI: 1.95–3.31) for women and 2.23 (95% CI: 1.86–2.68) for men.Conclusion.The study finds a gradient association between employment precariousness and poor mental health, which was somewhat stronger among women, suggesting an interaction with gender-related power asymmetries. Further research is needed to strengthen the epidemiological evidence base and to inform labour market policy-making.

Employment Attitudes and Mental Health of Long-term Unemployed People with Disabilities: Implications for Rehabilitation Counselors

1997 ◽  
Vol 28 (2) ◽  
pp. 21-25 ◽  
Author(s):  
Regina Pernice
Keyword(s):  
Mental Health ◽  
General Health Questionnaire ◽  
People With Disabilities ◽  
Self Esteem ◽  
Cross Sectional Study ◽  
Rehabilitation Counselors ◽  
Cross Sectional ◽  
Unemployed People ◽  
High Distress

Employment attitudes and mental health of long-term unemployed people with disabilities were investigated in a cross sectional study. During an interview, people selected themselves into four employment attitude groups, those who wanted employment (28%), those who were not able to work (35%), those who had alternatives to employment (30%) and those who were interested in training (7%). Mental health was assessed by the General Health Questionnaire (GHQ-12) and the Rosenberg Self-Esteem Scale (RSE). The results indicated that mental health was low with high distress and low self-esteem scores evident in the four groups. Implications for rehabilitation counselors are discussed.

scholarly journals Green Tea Consumption and Chronic Atrophic Gastritis: A Cross-Sectional Study in a Green Tea Production Village.

2000 ◽  
Vol 10 (5) ◽  
pp. 310-316 ◽  
Author(s):  
Kazunori Shibata ◽  
Masaki Moriyama ◽  
Tetsuhito Fukushima ◽  
Akihiko Kaetsu ◽  
Motonobu Miyazaki ◽  
...  
Keyword(s):  
Atrophic Gastritis ◽  
Green Tea ◽  
Chronic Atrophic Gastritis ◽  
Cross Sectional Study ◽  
Tea Consumption ◽  
Sectional Study ◽  
Cross Sectional ◽  
Tea Production
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