Association between coffee and green tea intake and pneumonia among the Japanese elderly: a case-control study

Abstract A large prospective cohort study in the United States examined the association between coffee intake and overall and cause-specific mortality and showed a inverse association between pneumonia and influenza deaths and coffee intake. In Japan, the mortality rate of pneumonia in elderly peopl...

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Autores principales:	Kyoko Kondo, Kanzo Suzuki, Masakazu Washio, Satoko Ohfuji, Satoru Adachi, Sakae Kan, Seiichiro Imai, Kunihiko Yoshimura, Naoyuki Miyashita, Nobumitsu Fujisawa, Akiko Maeda, Wakaba Fukushima, Yoshio Hirota, The Pneumonia in Elderly People Study Group
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/35ec232209ed4b07852ef29ec5f433b7
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spelling	oai:doaj.org-article:35ec232209ed4b07852ef29ec5f433b72021-12-02T15:54:10ZAssociation between coffee and green tea intake and pneumonia among the Japanese elderly: a case-control study10.1038/s41598-021-84348-w2045-2322https://doaj.org/article/35ec232209ed4b07852ef29ec5f433b72021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84348-whttps://doaj.org/toc/2045-2322Abstract A large prospective cohort study in the United States examined the association between coffee intake and overall and cause-specific mortality and showed a inverse association between pneumonia and influenza deaths and coffee intake. In Japan, the mortality rate of pneumonia in elderly people is high, and its prevention is an important issue. The present study investigated the association between coffee and green tea intake and pneumonia among the elderly. The design was a hospital-based case control study. The cases were patients over 65 years old newly diagnosed as pneumonia. As a control, patients with the same sex and age (range of 5 years) who visited the same medical institution around the same time (within 2 months after examination of the case) for a disease other than pneumonia were selected. There were two controls per case. Odds ratio (OR) and 95% confidence interval (CI) for pneumonia of coffee and green tea intake during the past month were calculated using a conditional logistic regression model. A total of 199 cases and 374 controls were enrolled. When compared to those who do not drink coffee, the OR for pneumonia of those who drink less than one cup of coffee per day was 0.69 (95% CI 0.39–1.21), OR of those who drink one cup was 0.67 (0.38–1.18), and OR of those who drink two or more cups was 0.50 (0.28–0.88) (Trend p = 0.024). No association was found between pneumonia and green tea consumption. This study suggested a preventive association between coffee intake over 2 cups per day and pneumonia in the elderly.Kyoko KondoKanzo SuzukiMasakazu WashioSatoko OhfujiSatoru AdachiSakae KanSeiichiro ImaiKunihiko YoshimuraNaoyuki MiyashitaNobumitsu FujisawaAkiko MaedaWakaba FukushimaYoshio HirotaThe Pneumonia in Elderly People Study GroupNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kyoko Kondo Kanzo Suzuki Masakazu Washio Satoko Ohfuji Satoru Adachi Sakae Kan Seiichiro Imai Kunihiko Yoshimura Naoyuki Miyashita Nobumitsu Fujisawa Akiko Maeda Wakaba Fukushima Yoshio Hirota The Pneumonia in Elderly People Study Group Association between coffee and green tea intake and pneumonia among the Japanese elderly: a case-control study
description	Abstract A large prospective cohort study in the United States examined the association between coffee intake and overall and cause-specific mortality and showed a inverse association between pneumonia and influenza deaths and coffee intake. In Japan, the mortality rate of pneumonia in elderly people is high, and its prevention is an important issue. The present study investigated the association between coffee and green tea intake and pneumonia among the elderly. The design was a hospital-based case control study. The cases were patients over 65 years old newly diagnosed as pneumonia. As a control, patients with the same sex and age (range of 5 years) who visited the same medical institution around the same time (within 2 months after examination of the case) for a disease other than pneumonia were selected. There were two controls per case. Odds ratio (OR) and 95% confidence interval (CI) for pneumonia of coffee and green tea intake during the past month were calculated using a conditional logistic regression model. A total of 199 cases and 374 controls were enrolled. When compared to those who do not drink coffee, the OR for pneumonia of those who drink less than one cup of coffee per day was 0.69 (95% CI 0.39–1.21), OR of those who drink one cup was 0.67 (0.38–1.18), and OR of those who drink two or more cups was 0.50 (0.28–0.88) (Trend p = 0.024). No association was found between pneumonia and green tea consumption. This study suggested a preventive association between coffee intake over 2 cups per day and pneumonia in the elderly.
format	article
author	Kyoko Kondo Kanzo Suzuki Masakazu Washio Satoko Ohfuji Satoru Adachi Sakae Kan Seiichiro Imai Kunihiko Yoshimura Naoyuki Miyashita Nobumitsu Fujisawa Akiko Maeda Wakaba Fukushima Yoshio Hirota The Pneumonia in Elderly People Study Group
author_facet	Kyoko Kondo Kanzo Suzuki Masakazu Washio Satoko Ohfuji Satoru Adachi Sakae Kan Seiichiro Imai Kunihiko Yoshimura Naoyuki Miyashita Nobumitsu Fujisawa Akiko Maeda Wakaba Fukushima Yoshio Hirota The Pneumonia in Elderly People Study Group
author_sort	Kyoko Kondo
title	Association between coffee and green tea intake and pneumonia among the Japanese elderly: a case-control study
title_short	Association between coffee and green tea intake and pneumonia among the Japanese elderly: a case-control study
title_full	Association between coffee and green tea intake and pneumonia among the Japanese elderly: a case-control study
title_fullStr	Association between coffee and green tea intake and pneumonia among the Japanese elderly: a case-control study
title_full_unstemmed	Association between coffee and green tea intake and pneumonia among the Japanese elderly: a case-control study
title_sort	association between coffee and green tea intake and pneumonia among the japanese elderly: a case-control study
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/35ec232209ed4b07852ef29ec5f433b7
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Association between coffee and green tea intake and pneumonia among the Japanese elderly: a case-control study

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