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Trends in initial lower extremity amputation rates among Veterans Health Administration health care System users from 2000 to 2004.

Abstract：

OBJECTIVE:To evaluate temporal trends in rates of initial lower extremity amputation (ILEA) among patients with diabetes in the Veterans Health Administration (VHA). RESEARCH DESIGN AND METHODS:Retrospective administrative data analysis of VHA clinic users with diabetes in fiscal years (FY) 2000 to 2004 (1 October 1999-30 September 2004). We calculated annual age- and sex-standardized rates of initial major, minor, and total amputations for the overall population and for various racial/ethnic groups (African Americans, Hispanics, and whites). Trends in ILEA risk were evaluated with and without adjustment for demographic characteristics and other potential risk factors, including presence of microvascular and macrovascular diseases, and antiglycemic treatment. RESULTS:Study populations of VHA patients with diabetes and without prior amputations ranged from 405,580 in FY 2000 to 739,377 in FY 2004. Age- and sex-standardized ILEA rates decreased by 34% (7.08/1,000 patients in FY 2000 to 4.65/1,000 patients in FY 2005) during the 5-year period. Minor and major amputation rates decreased by 33% (4.59 to 3.06/1,000) and 36% (2.49 to 1.59/1,000), respectively. Of major amputations, below-knee rates decreased from 1.08 to 0.87/1,000 (-19%), and above-knee decreased from 1.41 to 0.72/1,000 (-49%). Similar trends were seen for all racial groups. ILEA risk decreased by 28% (odds ratio 0.72 [95% CI 0.68-0.75]) when FY 2004 was compared with FY 2000 in the model, adjusting for demographic characteristics. This risk decrease was 22% in the model adjusting for all independent variables (odds ratio 0.78 [95% CI 0.74-0.82]). CONCLUSIONS:Downward 5-year trends in ILEA rates were observed for all amputation levels and among all racial groups, even after adjustment for risk differences over time.

journal_name

Diabetes Care

journal_title

Diabetes care

authors

Tseng CL,Rajan M,Miller DR,Lafrance JP,Pogach L

doi

10.2337/dc10-1775

subject

Has Abstract

pub_date

2011-05-01 00:00:00

pages

1157-63

issue

eissn

0149-5992

issn

1935-5548

pii

dc10-1775

journal_volume

pub_type

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Trends in initial lower extremity amputation rates among Veterans Health Administration health care System users from 2000 to 2004.