HA1c Performance - “Study Collaboration” between Brazil and Portugal

Valpassos, André; Menezes, Maria Elizabeth; Correa, José Abol; Correia, Helena; Brito, Cristina; Faria, Ana Paula

http://hdl.handle.net/10400.18/1912

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Authors

Valpassos, André

Menezes, Maria Elizabeth

Abstract(s)

The National External Quality Assessment Program (PNAEQ) ) and the National Program of Quality Control (PNCQ), , organizes and coordinates programs for the External Quality Assessment Laboratory. A comparative study was performed between Portugal and Brazil in order to detect similarities, and/or differences, of the results provided by the laboratories that participate in the “External Quality Control” HbA1c program in both countries. The determination of glycated hemoglobin (HbA1c) is used in patients with diabetes mellitus as a key to monitoring the long term blood glucose control. More than 30 different methods used worldwide, based on ion exchange chromatography or affinity electrophoresis and immunological principles limit the comparability of HbA1c values . There were selected to present the performance of HbA1c parameter obtained by the participants of the PNAEQ over the last 5 years and to evaluate the performance of the some sample by participants from PNAEQ and PNCQ .