HbA1c point-of-care test ‘accurate and precise’ for diagnosis
Point-of-care HbA1c tests have been proven to accurately diagnose diabetes in adults in an American study.
The research, published in the Journal of Diabetes Science and Technology, suggested both fingerstick and venous whole blood tests were “accurate and precise”.
A team, including representatives Abbott Rapid Diagnostics and University of Missouri, tested the Afinion™ HbA1c Dx test, analysing samples from 120 participants.
According to the findings, 97.1% of venous blood point-of-care (POC) tests and 97.5% of the finger-stick POC tests were within 6% of the Diabetes Control and Complications Trial’s reference method.
The research team said both the POC tests with finger-stick and venous blood samples were “highly correlated” with the National Glycohemoglobin Standardization Program.
Summarising the results, the researchers said: “Across the assay range, POC test results from fingerstick and venous whole blood samples were highly correlated with results from the NGSP SRL (r = .99). The mean bias was −0.021% HbA1c (−0.346% relative) using fingerstick samples and −0.005% HbA1c (−0.093% relative) using venous samples. Imprecision ranged from 0.62% to 1.93% CV for fingerstick samples and 1.11% to 1.69% CV for venous samples.
They concluded: “The results indicate that the POC test evaluated here is accurate and precise using both fingerstick and venous whole blood.”
To access the study, click here.