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Relationship between Coffee and Green Tea Consumption and All-cause Mortality in a Cohort of a Rural Japanese Population

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...

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Autores principales: Iwai, Nobuo, Ohshiro, Hitoshi, Kurozawa, Youichi, Hosoda, Takenobu, Morita, Hikari, Funakawa, Kazuhiko, Okamoto, Mikizo, Nose, Takayuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Japan Epidemiological Association 2007
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10499477/
https://www.ncbi.nlm.nih.gov/pubmed/12164320
http://dx.doi.org/10.2188/jea.12.191
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author Iwai, Nobuo
Ohshiro, Hitoshi
Kurozawa, Youichi
Hosoda, Takenobu
Morita, Hikari
Funakawa, Kazuhiko
Okamoto, Mikizo
Nose, Takayuki
author_facet Iwai, Nobuo
Ohshiro, Hitoshi
Kurozawa, Youichi
Hosoda, Takenobu
Morita, Hikari
Funakawa, Kazuhiko
Okamoto, Mikizo
Nose, Takayuki
author_sort Iwai, Nobuo
collection PubMed
description 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.
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spelling pubmed-104994772023-09-14 Relationship between Coffee and Green Tea Consumption and All-cause Mortality in a Cohort of a Rural Japanese Population Iwai, Nobuo Ohshiro, Hitoshi Kurozawa, Youichi Hosoda, Takenobu Morita, Hikari Funakawa, Kazuhiko Okamoto, Mikizo Nose, Takayuki J Epidemiol Original Article 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. Japan Epidemiological Association 2007-11-30 /pmc/articles/PMC10499477/ /pubmed/12164320 http://dx.doi.org/10.2188/jea.12.191 Text en © 2002 Japan Epidemiological Association. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Original Article
Iwai, Nobuo
Ohshiro, Hitoshi
Kurozawa, Youichi
Hosoda, Takenobu
Morita, Hikari
Funakawa, Kazuhiko
Okamoto, Mikizo
Nose, Takayuki
Relationship between Coffee and Green Tea Consumption and All-cause Mortality in a Cohort of a Rural Japanese Population
title Relationship between Coffee and Green Tea Consumption and All-cause Mortality in a Cohort of a Rural Japanese Population
title_full Relationship between Coffee and Green Tea Consumption and All-cause Mortality in a Cohort of a Rural Japanese Population
title_fullStr Relationship between Coffee and Green Tea Consumption and All-cause Mortality in a Cohort of a Rural Japanese Population
title_full_unstemmed Relationship between Coffee and Green Tea Consumption and All-cause Mortality in a Cohort of a Rural Japanese Population
title_short Relationship between Coffee and Green Tea Consumption and All-cause Mortality in a Cohort of a Rural Japanese Population
title_sort relationship between coffee and green tea consumption and all-cause mortality in a cohort of a rural japanese population
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10499477/
https://www.ncbi.nlm.nih.gov/pubmed/12164320
http://dx.doi.org/10.2188/jea.12.191
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