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Comparison of prescribing and adherence patterns of anti-osteoporotic medications post-admission for fragility type fracture in an urban teaching hospital and a rural teaching hospital in Ireland between 2005 and 2008

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Abstract

Introduction

Poor adherence reduces the potential benefits of osteoporosis therapy, lowering gains in bone mineral density resulting in increased risk of fractures.

Aim

To compare prescribing and adherence patterns of anti-osteoporotic medications in patients admitted to an urban teaching hospital in Ireland with a fragility type fracture to patients admitted to a rural hospital in the North Western region.

Methodology

We identified all patients >55 years admitted to Sligo General Hospital between 2005 and 2008 with a fragility fracture (N = 744) using the hospital in-patient enquiry system (HIPE). The medical card number of those patients eligible for the primary care reimbursement services scheme (PCRS) facilitated the linkage of the HSE-PCRS scheme database to the HIPE database which enabled a study to identify persistence rates of patients prescribed osteoporosis therapy after discharge. The results were compared to the findings of a similar study carried out in St. James’s Hospital, Dublin.

Results

The 12 months post-fracture prescribing increased from 11.0 % (95 % CI 9.6, 12.4) in 2005 to 47 % (95 % CI 43.6, 50.3) in 2008 in the urban setting and from 25 % (95 % CI 21.5, 28.9) to 39 % (95 % CI 34.5, 42.7) in the rural setting. Adherence levels to osteoporosis medications at 12 months post-initiation of therapy was <50 % in both study groups. Patients on less frequent dosing regimes were better adherers.

Conclusion

The proportion of patients being discharged on anti-osteoporosis medications post-fragility fracture increased between 2005 and 2008 in both patient groups. Sub-optimal adherence levels to osteoporosis medications continue to be a major concern.

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Acknowledgments

We would like to thank the Health Services Executive-Primary Care Reimbursement Service (HSE-PCRS) for providing the prescribing data for the present study and the Hospital In-Patient Enquiry (HIPE) units in both St. James’s hospital and Sligo Regional Hospital for providing the discharge fracture data.

Conflict of interest

The authors of this article have “no competing interests”.

Author information

Authors and Affiliations

  1. The North Western Rheumatology Unit, Our Lady’s Hospital, Manorhamilton, Co Leitrim, Ireland

    B. McGowan, C. Silke & B. Whelan

  2. Department of Pharmacology and Therapeutics, Trinity Centre for Health Sciences, St. James’s Hospital, Dublin, Ireland

    K. Bennett

  3. Osteoporosis and Bone Health Clinic, Medicine for the Elderly, St. James’s Hospital, Dublin 8, Ireland

    M. C. Casey

  4. Osteoporosis and Bone Health Clinic, Medicine for the Elderly, Sligo Regional Hospital, Sligo, Ireland

    J. Doherty

Authors
  1. B. McGowan
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  2. K. Bennett
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  3. M. C. Casey
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  4. J. Doherty
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  5. C. Silke
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  6. B. Whelan
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Corresponding author

Correspondence to B. McGowan.

Appendix

Appendix

See Table 3.

Table 3 Distribution of the ICD—10 codes used to identify typical and atypical osteoporotic type fractures
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McGowan, B., Bennett, K., Casey, M.C. et al. Comparison of prescribing and adherence patterns of anti-osteoporotic medications post-admission for fragility type fracture in an urban teaching hospital and a rural teaching hospital in Ireland between 2005 and 2008. Ir J Med Sci 182, 601–608 (2013). https://doi.org/10.1007/s11845-013-0935-9

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  • DOI: https://doi.org/10.1007/s11845-013-0935-9

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