The relationship between green tea and total caffeine intake and risk for self-reported type 2 diabetes among Japanese adults

Hiroyasu Iso, Chigusa Date, Kenji Wakai, Mitsuru Fukui, Akiko Tamakoshi, Mitsuru Mori, Yutaka Motohashi, Ichiro Tsuji, Yosikazu Nakamura, Haruo Mikami, Shuji Hashimoto, Yutaka Inaba, Yoshiharu Hoshiyama, Hiroshi Suzuki, Hiroyuki Shimizu, Hideaki Toyoshima, Shinkan Tokudome, Yoshinori Ito, Shogo Kikuchi, Akio Koizumi & 14 others Takashi Kawamura, Yoshiyuki Watanabe, Tsuneharu Miki, Kiyomi Sakata, Takayuki Nose, Norihiko Hayakawa, Takesumi Yoshimura, Katsuhiro Fukuda, Naoyuki Okamoto, Hideo Shio, Yoshiyuki Ohno, Tomoyuki Kitagawa, Toshio Kuroki, Kazuo Tajima

Research output: Contribution to journalArticle

300 Citations (Scopus)

Abstract

Background: In western populations, coffee consumption is associated with a reduced risk for type 2 diabetes; however, the effect of green, black, and oolong teas is unclear. Objective: To examine the relationship between consumption of these beverages and risk for diabetes. Design: Retrospective cohort study. Setting: 25 communities across Japan. Participants: A total of 17 413 persons (6727 men and 10 686 women; 49% of the original study population) who were 40 to 65 years of age; had no history of type 2 diabetes, cardiovascular disease, or cancer at the baseline lifestyle survey; and completed the 5-year follow-up questionnaire. There was no difference in body mass index levels at baseline between respondents and nonrespondents. Measurements: Questionnaire on consumption of coffee; black, green, and oolong teas; and physician-diagnosed diabetes. Results: During the 5-year follow-up, there were 444 self-reported new cases of diabetes in 231 men and 213 women (5-year event rates, 3.4% and 2.0%, respectively). Consumption of green tea and coffee was inversely associated with risk for diabetes after adjustment for age, sex, body mass index, and other risk factors. Multivariable odds ratios for diabetes among participants who frequently drank green tea and coffee (≥6 cups of green tea per day and ≥3 cups of coffee per day) were 0.67 (95% CI, 0.47 to 0.94) and 0.58 (CI, 0.37 to 0.90), respectively, compared with those who drank less than 1 cup per week. No association was found between consumption of black or oolong teas and the risk for diabetes. Total caffeine intake from these beverages was associated with a 33% reduced risk for diabetes. These inverse associations were more pronounced in women and in overweight men. Limitations: Diabetes was self-reported, no data were available on consumption of soda, and the follow-up rate was low. Conclusions: Consumption of green tea, coffee, and total caffeine was associated with a reduced risk for type 2 diabetes.

Original languageEnglish
Pages (from-to)554-562
Number of pages9
JournalAnnals of Internal Medicine
Volume144
Issue number8
DOIs
Publication statusPublished - 18-04-2006

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Tea
Caffeine
Coffee
Type 2 Diabetes Mellitus
Beverages
Body Mass Index
Population
Life Style
Japan
Cohort Studies
Cardiovascular Diseases
Retrospective Studies
Odds Ratio
Surveys and Questionnaires
Physicians
Neoplasms

All Science Journal Classification (ASJC) codes

  • Internal Medicine

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Iso, Hiroyasu ; Date, Chigusa ; Wakai, Kenji ; Fukui, Mitsuru ; Tamakoshi, Akiko ; Mori, Mitsuru ; Motohashi, Yutaka ; Tsuji, Ichiro ; Nakamura, Yosikazu ; Mikami, Haruo ; Hashimoto, Shuji ; Inaba, Yutaka ; Hoshiyama, Yoshiharu ; Suzuki, Hiroshi ; Shimizu, Hiroyuki ; Toyoshima, Hideaki ; Tokudome, Shinkan ; Ito, Yoshinori ; Kikuchi, Shogo ; Koizumi, Akio ; Kawamura, Takashi ; Watanabe, Yoshiyuki ; Miki, Tsuneharu ; Sakata, Kiyomi ; Nose, Takayuki ; Hayakawa, Norihiko ; Yoshimura, Takesumi ; Fukuda, Katsuhiro ; Okamoto, Naoyuki ; Shio, Hideo ; Ohno, Yoshiyuki ; Kitagawa, Tomoyuki ; Kuroki, Toshio ; Tajima, Kazuo. / The relationship between green tea and total caffeine intake and risk for self-reported type 2 diabetes among Japanese adults. In: Annals of Internal Medicine. 2006 ; Vol. 144, No. 8. pp. 554-562.
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abstract = "Background: In western populations, coffee consumption is associated with a reduced risk for type 2 diabetes; however, the effect of green, black, and oolong teas is unclear. Objective: To examine the relationship between consumption of these beverages and risk for diabetes. Design: Retrospective cohort study. Setting: 25 communities across Japan. Participants: A total of 17 413 persons (6727 men and 10 686 women; 49{\%} of the original study population) who were 40 to 65 years of age; had no history of type 2 diabetes, cardiovascular disease, or cancer at the baseline lifestyle survey; and completed the 5-year follow-up questionnaire. There was no difference in body mass index levels at baseline between respondents and nonrespondents. Measurements: Questionnaire on consumption of coffee; black, green, and oolong teas; and physician-diagnosed diabetes. Results: During the 5-year follow-up, there were 444 self-reported new cases of diabetes in 231 men and 213 women (5-year event rates, 3.4{\%} and 2.0{\%}, respectively). Consumption of green tea and coffee was inversely associated with risk for diabetes after adjustment for age, sex, body mass index, and other risk factors. Multivariable odds ratios for diabetes among participants who frequently drank green tea and coffee (≥6 cups of green tea per day and ≥3 cups of coffee per day) were 0.67 (95{\%} CI, 0.47 to 0.94) and 0.58 (CI, 0.37 to 0.90), respectively, compared with those who drank less than 1 cup per week. No association was found between consumption of black or oolong teas and the risk for diabetes. Total caffeine intake from these beverages was associated with a 33{\%} reduced risk for diabetes. These inverse associations were more pronounced in women and in overweight men. Limitations: Diabetes was self-reported, no data were available on consumption of soda, and the follow-up rate was low. Conclusions: Consumption of green tea, coffee, and total caffeine was associated with a reduced risk for type 2 diabetes.",
author = "Hiroyasu Iso and Chigusa Date and Kenji Wakai and Mitsuru Fukui and Akiko Tamakoshi and Mitsuru Mori and Yutaka Motohashi and Ichiro Tsuji and Yosikazu Nakamura and Haruo Mikami and Shuji Hashimoto and Yutaka Inaba and Yoshiharu Hoshiyama and Hiroshi Suzuki and Hiroyuki Shimizu and Hideaki Toyoshima and Shinkan Tokudome and Yoshinori Ito and Shogo Kikuchi and Akio Koizumi and Takashi Kawamura and Yoshiyuki Watanabe and Tsuneharu Miki and Kiyomi Sakata and Takayuki Nose and Norihiko Hayakawa and Takesumi Yoshimura and Katsuhiro Fukuda and Naoyuki Okamoto and Hideo Shio and Yoshiyuki Ohno and Tomoyuki Kitagawa and Toshio Kuroki and Kazuo Tajima",
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Iso, H, Date, C, Wakai, K, Fukui, M, Tamakoshi, A, Mori, M, Motohashi, Y, Tsuji, I, Nakamura, Y, Mikami, H, Hashimoto, S, Inaba, Y, Hoshiyama, Y, Suzuki, H, Shimizu, H, Toyoshima, H, Tokudome, S, Ito, Y, Kikuchi, S, Koizumi, A, Kawamura, T, Watanabe, Y, Miki, T, Sakata, K, Nose, T, Hayakawa, N, Yoshimura, T, Fukuda, K, Okamoto, N, Shio, H, Ohno, Y, Kitagawa, T, Kuroki, T & Tajima, K 2006, 'The relationship between green tea and total caffeine intake and risk for self-reported type 2 diabetes among Japanese adults', Annals of Internal Medicine, vol. 144, no. 8, pp. 554-562. https://doi.org/10.7326/0003-4819-144-8-200604180-00005

The relationship between green tea and total caffeine intake and risk for self-reported type 2 diabetes among Japanese adults. / Iso, Hiroyasu; Date, Chigusa; Wakai, Kenji; Fukui, Mitsuru; Tamakoshi, Akiko; Mori, Mitsuru; Motohashi, Yutaka; Tsuji, Ichiro; Nakamura, Yosikazu; Mikami, Haruo; Hashimoto, Shuji; Inaba, Yutaka; Hoshiyama, Yoshiharu; Suzuki, Hiroshi; Shimizu, Hiroyuki; Toyoshima, Hideaki; Tokudome, Shinkan; Ito, Yoshinori; Kikuchi, Shogo; Koizumi, Akio; Kawamura, Takashi; Watanabe, Yoshiyuki; Miki, Tsuneharu; Sakata, Kiyomi; Nose, Takayuki; Hayakawa, Norihiko; Yoshimura, Takesumi; Fukuda, Katsuhiro; Okamoto, Naoyuki; Shio, Hideo; Ohno, Yoshiyuki; Kitagawa, Tomoyuki; Kuroki, Toshio; Tajima, Kazuo.

In: Annals of Internal Medicine, Vol. 144, No. 8, 18.04.2006, p. 554-562.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The relationship between green tea and total caffeine intake and risk for self-reported type 2 diabetes among Japanese adults

AU - Iso, Hiroyasu

AU - Date, Chigusa

AU - Wakai, Kenji

AU - Fukui, Mitsuru

AU - Tamakoshi, Akiko

AU - Mori, Mitsuru

AU - Motohashi, Yutaka

AU - Tsuji, Ichiro

AU - Nakamura, Yosikazu

AU - Mikami, Haruo

AU - Hashimoto, Shuji

AU - Inaba, Yutaka

AU - Hoshiyama, Yoshiharu

AU - Suzuki, Hiroshi

AU - Shimizu, Hiroyuki

AU - Toyoshima, Hideaki

AU - Tokudome, Shinkan

AU - Ito, Yoshinori

AU - Kikuchi, Shogo

AU - Koizumi, Akio

AU - Kawamura, Takashi

AU - Watanabe, Yoshiyuki

AU - Miki, Tsuneharu

AU - Sakata, Kiyomi

AU - Nose, Takayuki

AU - Hayakawa, Norihiko

AU - Yoshimura, Takesumi

AU - Fukuda, Katsuhiro

AU - Okamoto, Naoyuki

AU - Shio, Hideo

AU - Ohno, Yoshiyuki

AU - Kitagawa, Tomoyuki

AU - Kuroki, Toshio

AU - Tajima, Kazuo

PY - 2006/4/18

Y1 - 2006/4/18

N2 - Background: In western populations, coffee consumption is associated with a reduced risk for type 2 diabetes; however, the effect of green, black, and oolong teas is unclear. Objective: To examine the relationship between consumption of these beverages and risk for diabetes. Design: Retrospective cohort study. Setting: 25 communities across Japan. Participants: A total of 17 413 persons (6727 men and 10 686 women; 49% of the original study population) who were 40 to 65 years of age; had no history of type 2 diabetes, cardiovascular disease, or cancer at the baseline lifestyle survey; and completed the 5-year follow-up questionnaire. There was no difference in body mass index levels at baseline between respondents and nonrespondents. Measurements: Questionnaire on consumption of coffee; black, green, and oolong teas; and physician-diagnosed diabetes. Results: During the 5-year follow-up, there were 444 self-reported new cases of diabetes in 231 men and 213 women (5-year event rates, 3.4% and 2.0%, respectively). Consumption of green tea and coffee was inversely associated with risk for diabetes after adjustment for age, sex, body mass index, and other risk factors. Multivariable odds ratios for diabetes among participants who frequently drank green tea and coffee (≥6 cups of green tea per day and ≥3 cups of coffee per day) were 0.67 (95% CI, 0.47 to 0.94) and 0.58 (CI, 0.37 to 0.90), respectively, compared with those who drank less than 1 cup per week. No association was found between consumption of black or oolong teas and the risk for diabetes. Total caffeine intake from these beverages was associated with a 33% reduced risk for diabetes. These inverse associations were more pronounced in women and in overweight men. Limitations: Diabetes was self-reported, no data were available on consumption of soda, and the follow-up rate was low. Conclusions: Consumption of green tea, coffee, and total caffeine was associated with a reduced risk for type 2 diabetes.

AB - Background: In western populations, coffee consumption is associated with a reduced risk for type 2 diabetes; however, the effect of green, black, and oolong teas is unclear. Objective: To examine the relationship between consumption of these beverages and risk for diabetes. Design: Retrospective cohort study. Setting: 25 communities across Japan. Participants: A total of 17 413 persons (6727 men and 10 686 women; 49% of the original study population) who were 40 to 65 years of age; had no history of type 2 diabetes, cardiovascular disease, or cancer at the baseline lifestyle survey; and completed the 5-year follow-up questionnaire. There was no difference in body mass index levels at baseline between respondents and nonrespondents. Measurements: Questionnaire on consumption of coffee; black, green, and oolong teas; and physician-diagnosed diabetes. Results: During the 5-year follow-up, there were 444 self-reported new cases of diabetes in 231 men and 213 women (5-year event rates, 3.4% and 2.0%, respectively). Consumption of green tea and coffee was inversely associated with risk for diabetes after adjustment for age, sex, body mass index, and other risk factors. Multivariable odds ratios for diabetes among participants who frequently drank green tea and coffee (≥6 cups of green tea per day and ≥3 cups of coffee per day) were 0.67 (95% CI, 0.47 to 0.94) and 0.58 (CI, 0.37 to 0.90), respectively, compared with those who drank less than 1 cup per week. No association was found between consumption of black or oolong teas and the risk for diabetes. Total caffeine intake from these beverages was associated with a 33% reduced risk for diabetes. These inverse associations were more pronounced in women and in overweight men. Limitations: Diabetes was self-reported, no data were available on consumption of soda, and the follow-up rate was low. Conclusions: Consumption of green tea, coffee, and total caffeine was associated with a reduced risk for type 2 diabetes.

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EP - 562

JO - Annals of Internal Medicine

JF - Annals of Internal Medicine

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