NGSP and IFCC-derived NGSP HbA1c can be used interchangeably.Diabetes Res Clin Pract. 2009 Aug; 85(2):e22-5.DR
To evaluate comparability of NGSP-certified method and IFCC-calibrated method.
HbA1c was measured on two analyzers (n=50). Comparability was tested by Deming regression, bias estimation and Friedman test.
A strong correlation and good agreement between two methods was demonstrated.
NGSP and IFCC-derived NGSP HbA1c can be used interchangeably.