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Application of the fracture risk assessment tool (FRAX®) and determination of suitable cut-off values during primary screening in specific health check-ups in Japan

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Abstract

Specific health check-ups, which do not include osteoporosis screening, are conducted more frequently than periodic osteoporosis screening in Japan. In this study, we investigated the usefulness of the fracture risk assessment tool (FRAX®) during specific health check-ups, evaluated the variations in its usefulness for 2 consecutive years, and determined FRAX® cut-off values for osteoporosis screening. FRAX® questionnaires were distributed to subjects who underwent specific health check-ups in 2009 and 2010 at Asahi-machi. Subjects who exhibited FRAX® cut-off values of ≥10 % were advised to be screened at a medical institution. Bone mineral densities (BMDs) were measured in 201 subjects in 2009 and 105 subjects in 2010 after specific health check-ups, and treatment was initiated for 79 subjects in 2009 and 24 subjects in 2010. The number of subjects examined and the rate of treatment initiation following specific health check-ups were higher than those in subjects following periodic osteoporosis screening in 2009. However, the number and the rate following specific health check-ups dropped in 2010. According to receiver operating characteristic curves analyses, the sensitivity and specificity of FRAX® to determine osteoporosis treatment were highest when the cut-off values were 8 % for men and 10.5 % for women. In conclusion, the combination of FRAX® and specific health check-ups was more useful than periodic osteoporosis screening to narrow down the subjects and to motivate them to seek follow-up. Cut-off values for specific health check-up using FRAX® should be approximately 8 % for men and 10.5 % for women

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Acknowledgments

This study was supported by the Ministry of Health, Labour, and Welfare of Japan through the Health and Health Promotion Projects for Elderly, 2010. The authors would like to thank Enago (www.enago.jp) for the English language review.

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Authors and Affiliations

  1. Department of Orthopedic Surgery, Asahi General Hospital, 477 Tomari, Asahimachi, Toyama, 939-0741, Japan

    Shinichi Nakatoh

  2. Asahimachi Health Center, 262-1 Arakawa, Asahimachi, Toyama, 939-0746, Japan

    Yuki Takemaru

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  1. Shinichi Nakatoh
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  2. Yuki Takemaru
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Correspondence to Shinichi Nakatoh.

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Nakatoh, S., Takemaru, Y. Application of the fracture risk assessment tool (FRAX®) and determination of suitable cut-off values during primary screening in specific health check-ups in Japan. J Bone Miner Metab 31, 674–680 (2013). https://doi.org/10.1007/s00774-013-0457-6

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  • DOI: https://doi.org/10.1007/s00774-013-0457-6

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