Changes in waist circumference and the incidence of type 2 diabetes in community-dwelling men and women: The suita study

Yukako Tatsumi, Makoto Watanabe, Michikazu Nakai, Yoshihiro Kokubo, Aya Higashiyama, Kunihiro Nishimura, Takashi Kobayashi, Misa Takegami, Yoko M. Nakao, Takuya Watanabe, Akira Okayama, Tomonori Okamura, Yoshihiro Miyamoto

Research output: Contribution to journalArticle

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Abstract

Backgrounds: The association between weight gain and the incidence of type 2 diabetes is well known. The aim of our study was to investigate the relationship between change in waist circumference (WC) and type 2 diabetes incidence. Methods: The participants in the Suita Study, a population-based cohort study in an urban area of Japan, underwent a baseline survey between 1989 and 1994 (Exam 1) and were examined at follow-up every 2 years. We performed a 9.3-year cohort study of 946 men and 1327 women with no history of diabetes who underwent Exam 1 and Exam 2 (between 1997 and 1999). Participants were stratified by sex and median WC at Exam 1, and, in each stratum, participants were further classified into three categories by tertile of WC change per year between Exam 1 and Exam 2. Hazard ratios (HRs) and 95% confidence intervals (CIs) for type 2 diabetes incidence were calculated by Cox proportional hazard models. The endpoints were first diagnosis of type 2 diabetes or March 2011. Results: During follow-up, 287 participants developed type 2 diabetes. In both sexes with median WC or higher, participants in the highest tertile of WC change had a significantly higher risk of developing type 2 diabetes. Multivariable adjusted HRs were 1.84 (95% CI, 1.10-3.08) in men and 2.30 (95% CI, 1.31-4.04) in women. No significant association was observed among participants with WC below median. Conclusions: Preventing WC gain is important in preventing type 2 diabetes in the Japanese population, especially among individuals with a relatively high WC.

Original languageEnglish
Pages (from-to)489-495
Number of pages7
JournalJournal of Epidemiology
Volume25
Issue number7
DOIs
Publication statusPublished - 2015

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Independent Living
Waist Circumference
Type 2 Diabetes Mellitus
Incidence
Confidence Intervals
Cohort Studies
Proportional Hazards Models
Population
Weight Gain
Japan

Keywords

  • Prospective cohort study
  • Type 2 diabetes mellitus
  • Waist circumference

ASJC Scopus subject areas

  • Epidemiology

Cite this

Tatsumi, Y., Watanabe, M., Nakai, M., Kokubo, Y., Higashiyama, A., Nishimura, K., ... Miyamoto, Y. (2015). Changes in waist circumference and the incidence of type 2 diabetes in community-dwelling men and women: The suita study. Journal of Epidemiology, 25(7), 489-495. https://doi.org/10.2188/jea.JE20140160

Changes in waist circumference and the incidence of type 2 diabetes in community-dwelling men and women : The suita study. / Tatsumi, Yukako; Watanabe, Makoto; Nakai, Michikazu; Kokubo, Yoshihiro; Higashiyama, Aya; Nishimura, Kunihiro; Kobayashi, Takashi; Takegami, Misa; Nakao, Yoko M.; Watanabe, Takuya; Okayama, Akira; Okamura, Tomonori; Miyamoto, Yoshihiro.

In: Journal of Epidemiology, Vol. 25, No. 7, 2015, p. 489-495.

Research output: Contribution to journalArticle

Tatsumi, Y, Watanabe, M, Nakai, M, Kokubo, Y, Higashiyama, A, Nishimura, K, Kobayashi, T, Takegami, M, Nakao, YM, Watanabe, T, Okayama, A, Okamura, T & Miyamoto, Y 2015, 'Changes in waist circumference and the incidence of type 2 diabetes in community-dwelling men and women: The suita study', Journal of Epidemiology, vol. 25, no. 7, pp. 489-495. https://doi.org/10.2188/jea.JE20140160
Tatsumi, Yukako ; Watanabe, Makoto ; Nakai, Michikazu ; Kokubo, Yoshihiro ; Higashiyama, Aya ; Nishimura, Kunihiro ; Kobayashi, Takashi ; Takegami, Misa ; Nakao, Yoko M. ; Watanabe, Takuya ; Okayama, Akira ; Okamura, Tomonori ; Miyamoto, Yoshihiro. / Changes in waist circumference and the incidence of type 2 diabetes in community-dwelling men and women : The suita study. In: Journal of Epidemiology. 2015 ; Vol. 25, No. 7. pp. 489-495.
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abstract = "Backgrounds: The association between weight gain and the incidence of type 2 diabetes is well known. The aim of our study was to investigate the relationship between change in waist circumference (WC) and type 2 diabetes incidence. Methods: The participants in the Suita Study, a population-based cohort study in an urban area of Japan, underwent a baseline survey between 1989 and 1994 (Exam 1) and were examined at follow-up every 2 years. We performed a 9.3-year cohort study of 946 men and 1327 women with no history of diabetes who underwent Exam 1 and Exam 2 (between 1997 and 1999). Participants were stratified by sex and median WC at Exam 1, and, in each stratum, participants were further classified into three categories by tertile of WC change per year between Exam 1 and Exam 2. Hazard ratios (HRs) and 95{\%} confidence intervals (CIs) for type 2 diabetes incidence were calculated by Cox proportional hazard models. The endpoints were first diagnosis of type 2 diabetes or March 2011. Results: During follow-up, 287 participants developed type 2 diabetes. In both sexes with median WC or higher, participants in the highest tertile of WC change had a significantly higher risk of developing type 2 diabetes. Multivariable adjusted HRs were 1.84 (95{\%} CI, 1.10-3.08) in men and 2.30 (95{\%} CI, 1.31-4.04) in women. No significant association was observed among participants with WC below median. Conclusions: Preventing WC gain is important in preventing type 2 diabetes in the Japanese population, especially among individuals with a relatively high WC.",
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AU - Miyamoto, Yoshihiro

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