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KMID : 1100920180390020074
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Korean Journal of Family Medicine
2018 Volume.39 No. 2 p.74 ~ p.84
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The Association between Fat Mass, Lean Mass and Bone Mineral Density in Premenopausal Women in Korea: A Cross-Sectional Study
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Kim Jee-Hyun
Kwon Hyuk-Tae
Heo Bo-Kyoung
Joh Hee-Kyung
Lee Cheol-Min
Hwang Seung-Sik
Park Dan-Bee
Park Jae-Hong
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Abstract
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Background: We investigated the association between body composition, especially truncal or non-truncal fat mass (FM), and bone mineral density (BMD) in premenopausal women in Korea.
Methods: A cross-sectional study was performed using data from the Korea National Health and Nutrition Examination Survey IV and V (2008?2011). Total lean mass (LM), total FM (TFM), truncal FM, and non-truncal FM, and BMD of the total femur, femoral neck (FN), and lumbar spine were measured using dual-energy X-ray absorptiometry. The association between body composition and BMD was analyzed using multiple linear regression. The risk of low BMD according to quartiles of TFM, truncal FM, and non-truncal FM was calculated using logistic regression. Subgroup analysis according to body mass index was also performed.
Results: In 4,343 premenopausal women, total LM was positively associated with BMD regardless of weight adjustment. TFM, truncal FM, and non-truncal FM were inversely associated with BMD after adjusting for weight. Odds ratios (ORs) for low BMD and 95% confidence intervals (CIs) of the highest quartile of TFM, truncal FM, and non-truncal FM compared with the lowest quartile were calculated. The risk of low BMD of the FN was higher in the highest quartile of TFM (OR, 4.48; 95% CI, 1.11?18.01) and truncal FM (OR, 5.48; 95% CI, 1.75?17.20). Truncal FM and not-truncal FM had an inverse association with BMD in the non-obese and obese subgroups of women.
Conclusion: Total LM has a protective effect on BMD and FM can have a detrimental effect on BMD besides its skeletal loading effect.
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KEYWORD
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Bone Density, Fat Mass, Lean Mass, Premenopause, Osteoporosis
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