Welcome to the NGSP Web Site
The purpose of the NGSP is to standardize Hemoglobin A1c test results to those of the Diabetes Control and Complications Trial (DCCT) and United Kingdom Prospective Diabetes Study (UKPDS) which established the direct relationships between HbA1c levels and outcome risks in patients with diabetes.
Interferences with HbA1c Measurements
Factors that can result in falsely elevated or lowered HbA1c results include hemoglobin variants and conditions which affect red cell lifespan. Read more...
CAP 2013 GH2a Summary Report
The summary report for the CAP 2013 GH2a proficiency survey is now available. Download...
Convert between NGSP, IFCC and eAG
We have added a tool for converting between NGSP(%), IFCC (mmol/mol) and eAG (mg/dL) units. Click here...
Change in CAP GH2 Survey Grading
The CAP will tighten the acceptable limit from +/-7% to +/-6% beginning in 2013. Read more….
Change in NGSP Criteria
New NGSP certification criteria went into effect beginning with September 2012 certifications. Read more….