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Original Research
Ambulatory Treatment of Type 2 Diabetes Mellitus in the United States, 1997-2012
Lydia W Turner, David Nartey, Randall S Stafford, Sonal Singh, G. Caleb Alexander
Diabetes Care 2013 Nov; DC_132097. https://doi.org/10.2337/dc13-2097
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Abstract

Background Type 2 diabetes is increasingly common and associated with substantial morbidity and mortality.

Methods We conducted descriptive analyses of cross-sectional data using the IMS Health National Disease and Therapeutic Index, a nationally representative audit of ambulatory physician practices in the US. We focused on visits for diabetes among patients 35 years or older. We used the IMS Health National Prescription Audit of pharmacy dispensing to derive information about drug expenditures.

Results Ambulatory diabetes visits increased from 23 million [M] treatment visits in 1997 (95% confidence intervals [CI], 21-25M) to 35M (CI 32-37M) in 2007 and declined to 31M visits by 2012 (CI 27-31M). Between 1997 and 2012 biguanide use increased, from 23% (20-26%) to 53% (50-56%) of treatment visits. Glitazone use grew from 6% (CI 4-8%) in 1997 to 41% (CI 39-43%) of all visits in 2005, but declined to 16% (CI 8-12%) by 2012. Since 2005, DPP-4 inhibitor use increased steadily, representing 21% (CI 18-23%) of treatment visits by 2012. GLP-1 agonists accounted for 4% of treatment visits in 2012. Visits where two or more drug compounds were used increased nearly 40% from 1997 to 2012. Between 2008 and 2012, drug expenditures increased 61%, driven primarily by use of insulin glargine and DPP-4 inhibitors.

Conclusions Declining sulfonylurea and glitazone use has been offset by increases in DPP-4 inhibitor use and, to a lesser degree, use of GLP-1 agonists. Treatment of diabetes has grown in complexity while older treatments continue to be replaced or supplemented by newer therapies.

  • Received September 5, 2013.
  • Accepted October 29, 2013.
  • © 2013 by the American Diabetes Association.

Readers may use this article as long as the work is properly cited, the use is educational and not for profit, and the work is not altered. See http://creativecommons.org/licenses/by-nc-nd/3.0/ for details.

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Diabetes Care: 44 (3)

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March 2021
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Ambulatory Treatment of Type 2 Diabetes Mellitus in the United States, 1997-2012
Lydia W Turner, David Nartey, Randall S Stafford, Sonal Singh, G. Caleb Alexander
Diabetes Care Nov 2013, DC_132097; DOI: 10.2337/dc13-2097

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Ambulatory Treatment of Type 2 Diabetes Mellitus in the United States, 1997-2012
Lydia W Turner, David Nartey, Randall S Stafford, Sonal Singh, G. Caleb Alexander
Diabetes Care Nov 2013, DC_132097; DOI: 10.2337/dc13-2097
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© 2021 by the American Diabetes Association. Diabetes Care Print ISSN: 0149-5992, Online ISSN: 1935-5548.