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Optimal body mass index for minimizing the risk for osteoporosis and type 2 diabetes

Korean Journal of Internal Medicine 2020년 35권 6호 p.1432 ~ 1442
이지현, 김정희, 홍아람, 김상완, 신찬수,
소속 상세정보
이지현 ( Lee Ji-Hyun ) - Seoul National University College of Medicine Department of Internal Medicine
김정희 ( Kim Jung-Hee ) - Seoul National University College of Medicine Department of Internal Medicine
홍아람 ( Hong A-Ram ) - Seoul National University College of Medicine Department of Internal Medicine
김상완 ( Kim Sang-Wan ) - Seoul National University College of Medicine Department of Internal Medicine
신찬수 ( Shin Chan-Soo ) - Seoul National University College of Medicine Department of Internal Medicine

Abstract


Background/Aims: Body mass index (BMI) is positively associated with bone mineral density and type 2 diabetes. We investigated an optimal BMI range for osteoporosis and type 2 diabetes.

Methods: This cross-sectional study used data from the Korea National Health and Nutrition Examination Survey (KNHANES), 2008 to 2011. We included 3,774 men aged > 50 years and 4,982 postmenopausal women. Logistic regression models were applied to elucidate each BMI category’s osteoporosis and diabetes risks.

Results: The prevalence of osteoporosis was 9.0% for men and 40.8% for women. The prevalence of type 2 diabetes in men was 19.7% and in women was 15.5%. In men with BMI > 25 kg/m2, the osteoporosis risk did not further increase as BMI increased. In women, BMI was linearly associated with osteoporosis risk without a plateau. In both men and women, higher BMI was associated with a higher type 2 diabetes risk. Men with a BMI of 23.0 to 24.9 kg/m2 harbored about a 30% lower osteoporosis risk than and a similar diabetes risk to those with a BMI of 21.0 to 22.9 kg/m2. In women with a BMI of 23.0 to 24.9 kg/m2, the adjusted odds ratio for osteoporosis was 0.72 (95% confidence interval, 0.59 to 0.87); the diabetes risk was not higher than in those with a BMI of 21.0 to 22.9 kg/m2.

Conclusions: For Korean men aged > 50 years and postmenopausal women, a BMI of 23.0 to 24.9 kg/m2 was the optimal range for minimizing osteoporosis and type 2 diabetes risks simultaneously.

키워드

Osteoporosis; Diabetes mellitus, type 2; Body mass index; Obesity

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