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KMID : 1100120150220030113
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대한골대사학회지
2015 Volume.22 No. 3 p.113 ~ p.118
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A FRAX Experience in Korea: Fracture Risk Probabilities with a Country-specific Versus a Surrogate Model
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Min Yong-Ki
Lee Dong-Yun
Park Youn-Soo
Moon Young-Wan
Lim Seung-Jae
Lee Young-Kyun
Choi Doo-Seok
Yoon Byung-Koo
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Abstract
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Background: Recently, a Korean fracture-risk assessment tool (FRAX) model has become available, but large prospective cohort studies, which are needed to validate the model, are still lacking, and there has been little effort to evaluate its usefulness. This study evaluated the clinical usefulness of the FRAX model, a FRAX developed by the World Health Organization, in Korea.
Methods: In 405 postmenopausal women and 139 men with a proximal femoral fracture, 10-year predicted fracture probabilities calculated by the Korean FRAX model (a country-specific model) were compared with the probabilities calculated with a FRAX model for Japan, which has a similar ethnic background (surrogate model).
Results: The 10-year probabilities of major osteoporotic and hip fractures calculated by the Korean model were significantly lower than those calculated by the Japanese model in women and men. The fracture probabilities calculated by each model increased significantly with age in both sexes. In patients aged 70 or older, however, there was a significant difference between the two models. In addition, the Korean model led to lower probabilities for major osteoporotic fracture and hip fracture in women when BMD was excluded from the model than when it was included.
Conclusions: The 10-year fracture probabilities calculated with FRAX models might differ between country-specific and surrogate models, and caution is needed when applying a surrogate model to a new population. A large prospective study is warranted to validate the country-specific Korean model in the general population.
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KEYWORD
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Hip fractures, Japan, Osteoporotic fractures, Republic of Korea, Risk assessment
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