Restricted accessLetterFirst published online 2011-12
Coefficient of Variation for Hemoglobin A1c Results That Are Traceable to National Glycohemoglobin Standardization Program Must Be Distinguished from Coefficient of Variation for Results Traceable to International Federation of Clinical Chemistry and Laboratory Medicine
HoelzelW, WeykampC, JeppssonJO, MiedemaK, BarrJR, GoodallI, HoshinoT, JohnWG, KoboldU, LittleR, MoscaA, MauriP, ParoniR, SusantoF, TakeiI, ThienpontL, UmemotoM, WiedmeyerHM. IFCC Working Group on HbA1c Standardization: IFCC reference system for measurement of hemoglobin A1c in human blood and the national standardization schemes in the United States, Japan, and Sweden: a method-comparison study. Clin Chem, 2004; 50:166–174.
2.
HanasR, JohnG. 2010 consensus statement on the worldwide standardization of the hemoglobin A1c measurement. Clin Chem, 2010; 56:1362–1364.
3.
Lenters-WestraE, WeykampC, SchindhelmRK, SiebelderC, BiloHJ, SlingerlandRJ. One in five laboratories using various hemoglobin A1c methods do not meet the criteria for optimal diabetes care management. Diabetes Technol Ther, 2011; 13:429–433.
4.
WeykampCW, MoscaA, GilleryP, PanteghiniM. The analytical goals for hemoglobin A1c measurement in IFCC units and National Glycohemoglobin Standardization Program units are different. Clin Chem, 2011; 57:1204–1206.
