New NGSP Certification Criteria beginning Jan. 2014
Beginning January 2014, 37 of 40 results (38 of 40 for Level I laboratories) will need to be within +/-6% (relative) of the NGSP SRL in order to pass certification (current limits are +/-7%).
Change in CAP GH2 HbA1c Survey Grading
The College of American Pathologists began using accuracy grading based on target values set by the NGSP starting with the 2007A survey. In 2007 the acceptable limit was +/-15% of the target value; this limit was lowered to +/-12% in 2008, +/-10%in 2009, +/-8% in 2010 and +/-7% in 2011 and 2012. For 2013 the limit has been further reduced to +/-6%.
HbA1c Recommended for Diagnosis
An international expert committee that includes representatives from the American Diabetes Association (ADA), International Diabetes Federation (IDF), and European Association for the Study of Diabetes (EASD) has officially endorsed the use of HbA1c to diagnose diabetes. The recommended cutoff is HbA1c ≥ 6.5%. The recommendation has been officially endorsed by the American Diabetes Association and endorsed with qualifications by the American Association of Clinical Endocrinologists/American College of Endocrinologists, the Endocrine Society. the World Health Organization and the International Diabetes Federation.