• Eur J Clin Nutr · Jul 2002

    Comparative Study

    Obesity, weight change and risks for hypertension, diabetes and hypercholesterolemia in Japanese men.

    • K Ishikawa-Takata, T Ohta, K Moritaki, T Gotou, and S Inoue.
    • Division of Health Promotion and Exercise, National Institute of Health and Nutrition, Tokyo, Japan. kazu@nih.go.jp
    • Eur J Clin Nutr. 2002 Jul 1; 56 (7): 601-7.

    ObjectiveTo examine the effects of the degree of body mass index and weight gain as the risks for hypertension, hypercholesterolemia and diabetes in Japanese men, and to compare that to the corresponding effects in a Caucasian population.DesignProspective cohort study.SettingCohort of all male employees at a company.SubjectsA total of 4737 male employees followed until retirement or for 4 y (longest term 4 y).ResultsIncrease of body mass index beyond 22 kg/m(2) related to an increased risk for hypertension even after being adjusted for possible confounding factors such as age, smoking status, alcohol intake, family history and baseline value of systolic blood pressure. The risks greatly increased in subjects with a body mass index above 27 kg/m(2) for hypertension, and 29 kg/m(2) for diabetes and hypercholesterolemia. Weight gain (more than 2 kg) was strongly related to an increased risk for hypertension and hypercholesterolemia after being adjusted for possible confounding factors. However, weight gain was not related to diabetes, and weight loss did not decrease the risks for any of the three diseases.ConclusionsAmong Japanese, the degrees of body mass index associated with risks for hypertension, diabetes and hypercholesterolemia were lower than those in Caucasians. The risks for hypertension and hypercholesterolemia were strongly associated with weight gain in a Japanese male population who showed a low prevalence of severe obesity, and the risks were similar to or somewhat higher than those in a Caucasian population with a high prevalence of severe obesity.SponsorshipHealth Science Research Grant by the Ministry of Health and Welfare of Japan.

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