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Low Bone Mineral Density and Calcium Levels as Risks for Mortality in Patients with Self-Discontinuation of Anti-Osteoporosis Medication

Author

Listed:
  • Chun-Sheng Hsu

    (Department of Physical Medicine and Rehabilitation, Taichung Veterans General Hospital, Taichung 40705, Taiwan
    College of Medicine, National Chung Hsing University, Taichung 402202, Taiwan
    Department of Physical Medicine and Rehabilitation, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei 11490, Taiwan)

  • Shin-Tsu Chang

    (Department of Physical Medicine and Rehabilitation, Taichung Veterans General Hospital, Taichung 40705, Taiwan
    Department of Physical Medicine and Rehabilitation, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei 11490, Taiwan
    Department of Physical Medicine and Rehabilitation, Kaohsiung Veterans General Hospital, Kaohsiung 813414, Taiwan)

  • Yuan-Yang Cheng

    (Department of Physical Medicine and Rehabilitation, Taichung Veterans General Hospital, Taichung 40705, Taiwan
    School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan)

  • Hsu-Tung Lee

    (College of Medicine, National Chung Hsing University, Taichung 402202, Taiwan
    Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei 11490, Taiwan
    Cancer Prevention and Control Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan
    Department of Neurosurgery, Neurological Institute, Taichung Veterans General Hospital, Taichung 40705, Taiwan)

  • Chih-Hui Chen

    (School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
    Department of Orthopedics, Taichung Veterans General Hospital, Taichung 40705, Taiwan)

  • Ya-Lian Deng

    (Department of Nursing, Taichung Veterans General Hospital, Taichung 40705, Taiwan)

  • Chiann-Yi Hsu

    (Department of Medical Research, Taichung Veterans General Hospital, Taichung 40705, Taiwan)

  • Yi-Ming Chen

    (College of Medicine, National Chung Hsing University, Taichung 402202, Taiwan
    School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
    Department of Medical Research, Taichung Veterans General Hospital, Taichung 40705, Taiwan
    Division of Allergy, Immunology and Rheumatology, Taichung Veterans General Hospital, Taichung 40705, Taiwan)

Abstract

Bone mass density (BMD) has been used universally in osteoporosis diagnosis and management. Adherence to anti-osteoporosis medication is related to mortality risk. This study aimed to investigate the relationship between mortality and low BMD of the femoral neck and vertebra among patients self-discontinuing anti-osteoporosis medication. Between June 2016 and June 2018, this single-center retrospective study recruited 596 participants who self-discontinued anti-osteoporosis medication. Patients were categorized into four groups by BMD of the right femoral neck and lumbar spine. Occurrence and causes of mortality were obtained from medical records. Independent risk factors and the five-year survival of various levels of BMD were analyzed by Cox regression and the Kaplan–Meier survival analysis. BMD value and serum calcium level were significantly lower in the mortality group ( p < 0.001). Compared to the reference, the adjusted hazard ratio (HR) for all-cause mortality in patients with lower BMD of both the lumbar spine and femoral neck was 3.03. The five-year cumulative survival rate was also significantly lower (25.2%, p < 0.001). A low calcium level was also associated with mortality (HR: 0.87, 95% CI: 0.76–0.99, p = 0.033). In conclusion, lower BMD and calcium levels were associated with higher mortality risk in patients with poor adherence. Hence, patients self-discontinuing anti-osteoporosis medication should be managed accordingly.

Suggested Citation

  • Chun-Sheng Hsu & Shin-Tsu Chang & Yuan-Yang Cheng & Hsu-Tung Lee & Chih-Hui Chen & Ya-Lian Deng & Chiann-Yi Hsu & Yi-Ming Chen, 2021. "Low Bone Mineral Density and Calcium Levels as Risks for Mortality in Patients with Self-Discontinuation of Anti-Osteoporosis Medication," IJERPH, MDPI, vol. 19(1), pages 1-11, December.
    • Handle: RePEc:gam:jijerp:v:19:y:2021:i:1:p:197-:d:710894
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