title: NGSP and IFCC-derived NGSP HbA1c can be used interchangeably.
abstract: OBJECTIVE
  To evaluate comparability of NGSP-certified method and IFCC-calibrated method.
  
  
  METHODS
  HbA1c was measured on two analyzers (n=50). Comparability was tested by Deming regression, bias estimation and Friedman test.
  
  
  RESULTS
  A strong correlation and good agreement between two methods was demonstrated.
  
  
  CONCLUSIONS
  NGSP and IFCC-derived NGSP HbA1c can be used interchangeably.
authors: Department of Pathology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Thailand. rakpz@mahidol.ac.th
authors: K
authors: K
authors: Paisooksantivatana
authors: A
authors: A
authors: Kongsomgan
authors: K
authors: K
authors: Khupulsup
mesh_terms: D002138:Calibration; D006442:Glycated Hemoglobin / Q000378:metabolism*; D006801:Humans; D016555:Matched-Pair Analysis; D009391:Nephelometry and Turbidimetry; D011786:Quality Control; D012015:Reference Standards; D012016:Reference Values
chemical_list: D006442:Glycated Hemoglobin