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Coding and prescription rates of osteoporosis are low among distal radius fracture patients in Japan

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Abstract

Introduction

This study aimed to clarify the coding and prescription rates for osteoporosis in distal radius fracture patients and to investigate the associated factors to help prevent subsequent osteoporotic fracture.

Materials and methods

Between 2014–2015, among 294,374 eligible individuals (42% female) aged 50–75 years in a health insurance claims database, we identified 192 individuals (mean age: 59.8 years, 74% female), counted the coding of distal radius fracture (International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10) code: S525, S526), and determined if the patient had been assigned the code for osteoporosis and been prescribed osteoporosis medications. Logistic regression was performed to identify factors related to each rate.

Results

The osteoporosis coding rate and osteoporosis medication prescription rate were 17.2% (n = 33) and 10.9% (n = 21), respectively. Most codes were assigned ≤ 3 months after injury (88%) at the distal radius fracture treatment facilities (84.8%). Patients who were assigned the code for osteoporosis or treated with osteoporosis medications were older (p = 0.08, p = 0.02, respectively), female (p = 0.05, p = 0.06, respectively) and having comorbidity (p = 0.02, p = 0.07, respectively). After adjustment, being female and having comorbidity remained the independent factors for the assignment of the code for osteoporosis (OR: 3.30, 95%, CI: 1.08–10.07, OR: 2.77, 95% CI: 1.24–6.12, respectively). No factor remained significant for the osteoporosis prescription. Active vitamin D analogues were most frequently prescribed medication (67%) followed by bisphosphonates (48%).

Conclusion

The overall coding and prescription rates for osteoporosis after distal radius fracture were low, which suggested that physician adherence to the osteoporosis guideline was low.

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Acknowledgements

This work was partly funded by the Research Project for the Analysis of the Utilization of Health Care Services and Estimation of the Number of Patients Based on the Patient Survey (H27-Statistics-Ippan-001) and by the Research Project for the Validity and Application of the Estimated Number of Patients Based on the Patient Survey (H29-Statistics-Ippan-003) from the Ministry of Health, Labor, and Welfare of Japan.

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Authors and Affiliations

  1. Department of Orthopaedics, Teikyo University School of Medicine, 1-2-11, Kaga, Itabashi, Tokyo, Japan

    Natsumi Saka, Yoshinobu Watanabe & Hirotaka Kawano

  2. Department of Public Health, Akita University School of Medicine, 1-1 Tegatagakuenmachi, Akita, 010-8502, Japan

    Kyoko Nomura

  3. Graduate School of Public Health, Teikyo University, 1-2-11, Kaga, Itabashi, Tokyo, Japan

    Kyoko Nomura, Hoichi Amano, Kenichi Fujimoto & Shinichi Tanihara

  4. Department of Social and Behavioral Sciences, Harvard. T.H. Chan School of Public Health, 677 Huntington Ave, Boston, MA, 02115, USA

    Hoichi Amano

  5. Department of Public Health, Kurume University School of Medicine, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan

    Shinichi Tanihara

Authors
  1. Natsumi Saka
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  2. Kyoko Nomura
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  3. Hoichi Amano
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  5. Yoshinobu Watanabe
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  6. Hirotaka Kawano
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  7. Shinichi Tanihara
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Contributions

NS designed the study and wrote the initial draft of the manuscript. KN and TS contributed to analysis and interpretation of data and assisted in the preparation of the manuscript. All other authors contributed to data collection and interpretation and critically reviewed the manuscript. All authors approved the final version of the manuscript and agree to be accountable for all aspects of the work by ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved

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Correspondence to Shinichi Tanihara.

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Saka, N., Nomura, K., Amano, H. et al. Coding and prescription rates of osteoporosis are low among distal radius fracture patients in Japan. J Bone Miner Metab 38, 363–370 (2020). https://doi.org/10.1007/s00774-019-01067-z

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  • DOI: https://doi.org/10.1007/s00774-019-01067-z

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