Relationship between Coffee and Green Tea Consumption and All-cause Mortality in a Cohort of a Rural Japanese Population.
Open Access
- 1 January 2002
- journal article
- Published by Japan Epidemiological Association in Journal of Epidemiology
- Vol. 12 (3), 191-198
- https://doi.org/10.2188/jea.12.191
Abstract
We conducted a cohort study to investigate the effects of coffee and green tea consumption on all-cause mortality in a rural Japanese population. Data were obtained from 2,855 men and women aged 40-79 years in 1989, and during the subsequent 9.9 years of follow-up. Using the Cox regression model to adjust for potential confounding factors, we calculated the multivariate hazard ratios of death from all causes separately for men and women. The multivariate hazard ratio of mortality for men who consumed two or more cups of coffee per day, compared with those who consumed less than half a cup per day, was 0.43 (95% confidence interval, 0.30-0.63), and the ratio for those who consumed half to one cup of coffee per day was 0.70 (95% confidence interval, 0.52-0.94). Exclusion of subjects with less than 5 years of follow-up did not substantially change the findings. No other statistically significant associations were identified between consumption of the two beverages and all-cause mortality. For men, multivariate hazard ratios of death from apoplexy showed a significant inverse association with increasing coffee consumption. The effects of habitual coffee consumption and its related factors on health in Japan need to be studied in greater detail.Keywords
This publication has 28 references indexed in Scilit:
- Coffee and cancerEuropean Journal Of Cancer Prevention, 2000
- Coffee Drinking and Serum Gamma-Glutamyltransferase: An Extended Study of Self-Defense Officials of JapanAnnals of Epidemiology, 1999
- Coffee consumption and decreased serum gamma-glutamyltransferase and aminotransferase activities among male alcohol drinkersInternational Journal of Epidemiology, 1998
- Green tea and cancer in humans: A review of the literatureNutrition and Cancer, 1998
- Dietary Differences with Green Tea Intake among Middle-Aged Japanese Men and WomenPreventive Medicine, 1997
- Coffee, tea, and mortalityAnnals of Epidemiology, 1993
- Coffee. Facts and controversiesArchives of Family Medicine, 1993
- Coffee consumption and cause-specific mortality association with age at death and compression of mortalityJournal of Clinical Epidemiology, 1992
- Mortality among Female Practitioners of Chanoyu (Japanese "Tea-ceremony").The Tohoku Journal of Experimental Medicine, 1992
- Coffee, coronary heart disease and mortality in middle-aged Swedish men: findings from the Primary Prevention StudyJournal of Internal Medicine, 1991