The challenge of osteoporosis on the U.S. healthcare system is escalating, driven significantly by the aging population. While national cost estimates exist, there has been a critical lack of understanding regarding the disease’s financial burden at the individual state level and the future impact of demographic shifts. This knowledge gap hinders effective planning and evaluation of interventions, as well as the control of healthcare expenditures. Furthermore, challenges such as the widespread underdiagnosis of osteoporosis and the failure to capture long-term costs of fractures contribute to significant underestimation of the disease’s true impact.
Addressing these crucial issues, Burge, King, Balda, and Worley have developed and applied a robust methodology for estimating the current and future burden of osteoporosis in state populations, offering critical insights for health policy decisions tailored to local needs. This innovative approach stands in stark contrast to “top-down” accounting methods that fail to consider state-specific variations in population distribution, age, sex, race, and medical practice patterns.
Key Features of the Methodology:
- State-Specific Data Integration: The methodology leverages state-specific data, including age- and sex-specific population, mortality, and all-payer hospital discharge data. This is complemented by national data on outpatient and long-term care (LTC) when state data is unavailable, ensuring a comprehensive view.
- Focus on Fracture Costs: To overcome the challenge of osteoporosis underdiagnosis, the approach centers on fracture costs, utilizing published attribution rates to determine the proportion of fractures attributable to osteoporosis, rather than relying solely on diagnosis codes.
- Markov State-Transition Model for Women: For hip, spine, and wrist fractures in women, the methodology incorporates a Markov state-transition model. This model simulates the natural history of osteoporosis from age 50 to 99, capturing long-term consequences and costs of both incident (new) and prevalent (pre-existing) fractures.
- Detailed Cost Evaluation: Costs are meticulously evaluated by site of service (inpatient, outpatient, long-term care), age group, and race, offering granular information for targeted interventions.
- Future Projections: The methodology projects future costs and fracture numbers by multiplying base-year distributions by age-, sex-, and race-specific population growth rates, providing a crucial 25-year outlook.
Application to Florida (2000-2025): A Glimpse into the Burden
The methodology was rigorously applied to Florida, a state with the nation’s second-largest senior population. The findings are staggering:
- Current Burden (Year 2000): An estimated 86,428 osteoporotic fractures occurred in Florida, incurring a total medical cost of nearly $1.24 billion.
- Projected Future Burden (Year 2025): The estimated number of incident fractures is projected to dramatically increase to 151,622, with associated costs soaring to $2.14 billion – a 72% increase from 2000.
- Cost Distribution: In 2000, inpatient costs constituted the majority (56% or $689.2 million), followed by long-term care (LTC) at 37% ($452.8 million), and outpatient care at 8% ($96.4 million). The proportion of LTC costs notably increases with age.
- Fracture Types: While hip fractures contribute the majority of costs, spine fractures account for approximately 51% of all osteoporotic fractures, albeit at a lower cost due to predominantly outpatient treatment.
- Demographic Impact:
- Women accounted for 75% of total medical care costs in 2000, projected to reach $1.6 billion by 2025.
- While white individuals held the largest share of costs in 2000 ($1 billion, 87%), the Hispanic and “other” race groups are projected to experience the most substantial growth rates in both fractures and costs by 2025, with Hispanic costs predicted to increase 2.5-fold. This highlights the need for culturally appropriate interventions.
Significance and Impact:
This methodology provides a standardized and highly valuable tool for state policymakers. By generating rich, detailed information on the current and future cost burden of osteoporosis, it enables:
- Informed Health-Policy Decisions: Tailored to the unique needs of individual state populations.
- Strategic Resource Allocation: Guiding planning for future health service demands, particularly for long-term care.
- Targeted Interventions: Identifying high-risk populations, such as older Floridians and Hispanic persons, for increased diagnosis and treatment to rein in burgeoning costs.
- Interstate Comparisons: The standardized design facilitates valid comparisons among states, fostering a collaborative approach to osteoporosis management.
While providing conservative estimates that likely form a lower bound on total costs, the analysis underscores the immense and growing financial and healthcare burden of osteoporosis. Understanding these costs is the first critical step toward effective prevention and management strategies.
Reference for this article:
Burge, R. T., King, A. B., Balda, E., & Worley, D. (2003). Methodology for Estimating Current and Future Burden of Osteoporosis in State Populations: Application to Florida in 2000 through 2025. Value in Health, 6(5), 574–583.