Osteoporosis International

, Volume 26, Issue 8, pp 2111–2119 | Cite as

Cost-effectiveness of fracture prevention in rural women with limited access to dual-energy X-ray absorptiometry

Original Article

Abstract

Summary

A reduced reimbursement for office-based dual-energy X-ray absorptiometry (DXA) is likely to exacerbate the burden of fractures in rural areas. Our cost-effective analysis suggests that, in areas where access to DXA is limited, treatment for women at high clinical risk for fractures could both improve health and save money.

Introduction

To evaluate the cost-effectiveness of various fracture prevention strategies for rural women with limited access to dual-energy X-ray absorptiometry (DXA).

Methods

A Markov model was developed using data from the published literature and the Manitoba Bone Density Program. The participants were a simulated cohort of rural women aged 65 years with travel distance between 10 and 24 mi to the nearest DXA site. The evaluated strategies were (1) watchful waiting, (2) bone mineral density (BMD)-based strategy (i.e., DXA screening followed by pharmacotherapy based on BMD), and (3) clinical risk factor (CRF)-based strategy (i.e., pharmacotherapy for women at high risk for fractures by the World Health Organization Fracture Risk Assessment Tool [FRAX]). The outcome was an incremental cost-effectiveness ratio (ICER) measured by cost per quality-adjusted life-year (QALY) gained. The analysis was preformed from a societal perspective over a lifetime horizon.

Results

In the base-case analysis, the BMD-based strategy had an ICER of $6000 per QALY gained. For those with travel distance between 25 and 39 mi, the BMD-based strategy would have an ICER of $140,800 per QALY gained. For those with travel distance greater than 40 mi, the CRF-based strategy would be more effective and less costly than other strategies.

Conclusions

In areas where DXA is readily available, DXA screening followed by pharmacotherapy guided by BMD would be preferred. In areas with more limited access to DXA, pharmacotherapy for women at high clinical risk for fractures based on FRAX could both improve health and save money from the societal perspective.

Keywords

Bone mineral density FRAX Osteoporosis Rural health Screening 

Notes

Acknowledgments

The authors acknowledge the Manitoba Centre for Health Policy (MCHP) for use of data contained in the Population Health Research Data Repository (HIPC project number 2012/2013-5). The results and conclusions are those of the authors, and no official endorsement by the MCHP, Manitoba Health, or other data providers is intended or should be inferred. This article has been reviewed and approved by the members of the Manitoba Bone Density Program Committee.

Conflicts of interest

Kouta Ito declares that he has no conflict of interest. William Leslie received speaker bureau (paid to facility) from Amgen, Eli Lilly, and Novartis and research grants (paid to facility) from Amgen and Genzyme.

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Copyright information

© International Osteoporosis Foundation and National Osteoporosis Foundation 2015

Authors and Affiliations

  1. 1.Division of Geriatric Medicine, Department of Primary CareUniversity of New England College of Osteopathic MedicineBiddefordUSA
  2. 2.Department of MedicineUniversity of ManitobaWinnipegCanada

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