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. 2009 Dec;32(12):2225-9.
doi: 10.2337/dc09-0459.

Projecting the future diabetes population size and related costs for the U.S

Elbert S Huang  1 , Anirban Basu, Michael O'Grady, James C Capretta
Affiliations

Projecting the future diabetes population size and related costs for the U.S

Elbert S Huang et al. Diabetes Care. 2009 Dec.

Abstract

Objective: We developed a novel population-level model for projecting future direct spending on diabetes. The model can be used in the federal budget process to estimate the cost implications of alternative policies.

Research design and methods: We constructed a Markov model simulating individuals' movement across different BMI categories, the incidence of diabetes and screening, and the natural history of diabetes and its complications over the next 25 years. Prevalence and incidence of obesity and diabetes and the direct spending on diabetes care and complications are projected. The study population is 24- to 85-year-old patients characterized by the Centers for Disease Control and Prevention's National Health and Nutrition Examination Survey and National Health Interview Survey.

Results: Between 2009 and 2034, the number of people with diagnosed and undiagnosed diabetes will increase from 23.7 million to 44.1 million. The obesity distribution in the population without diabetes will remain stable over time with approximately 65% of individuals of the population being overweight or obese. During the same period, annual diabetes-related spending is expected to increase from $113 billion to $336 billion (2007 dollars). For the Medicare-eligible population, the diabetes population is expected to rise from 8.2 million in 2009 to 14.6 million in 2034; associated spending is estimated to rise from $45 billion to $171 billion.

Conclusions: The diabetes population and the related costs are expected to at least double in the next 25 years. Without significant changes in public or private strategies, this population and cost growth are expected to add a significant strain to an overburdened health care system.

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Figures

Figure 1
Figure 1
Conceptual model of costs of diabetes with prevalent and future cohorts over time.
Figure 2
Figure 2
Projected distribution of newly diagnosed, undiagnosed, and established cases of diabetes, 2009–2034.
Figure 3
Figure 3
Projected direct spending on diabetes and its complications for different cohorts, 2008–2033. Reprinted with permission from Huang et al. (23).
See this image and copyright information in PMC

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