Perchè parlare del Wound Care si può? NO, si deve! DAL 2017

An in-depth assessment of diabetes-related lower extremity amputation rates 2000-2013 delivered by twenty-one countries for the data collection 2015 of the Organization for Economic Cooperation and Development (OECD)

Background: International comparisons of diabetes-related lower extremity amputation rates are still hampered by different criteria used for data collection and analysis. We aimed to evaluate trends and variation of major/minor amputations, using agreed definitions adopted by the Organization for Economic Cooperation and Development in 2015.

Methods: Direct age-sex standardized rates were calculated per 100,000 subjects per year between 2000 and 2013, using major/minor amputations with diabetes diagnosis as numerators and the total population or number of people with diabetes as denominators. Longitudinal trends were investigated using generalized estimating equations.

Results: Twenty-one countries reported major amputations referred to the general population, showing a mean reduction from 10.8 to 7.5 per 100,000 (- 30.6%). Eleven countries also reported major amputations among people with diabetes, showing a mean reduction from 182.9 to 128.3 per 100,000 (- 29.8%). Minor amputations remained stable over the study period. Longitudinal trends showed a significant average annual decrease of – 0.19 per 100,000 in the general population (95% CI – 0.36 to – 0.02; p = .03) and – 4.52 per 100,000 among subjects with diabetes (95% CI – 6.09 to – 2.94; p < .001). The coefficient of variation of major amputation rates between countries was fairly high (64%-in the total population, 67% among people with diabetes).

Conclusions: The study highlighted a clinically significant reduction of major amputations, in both the general population and among people with diabetes. The use of standardized definitions, while increasing the comparability of multinational data, highlighted remarkable differences between countries. These results can help identifying and sharing best practices effectively on a global scale.

Keywords: Diabetes care; Generalized estimating equations; Health systems performance assessment; Healthcare Quality Indicators; Lower extremity amputations in diabetes.

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