Article Prediabetes (Borderline Diabetes) http://www.diabetes.co.uk/pre-diabetes.html is a correctly written value of glycated hemoglobin in units of mmol / mol, according to the latest revision of the methodology IFCC, but in the table below are the 3rd row values marked units used for blood glucose values mmol / l and not for HbA1c. The right to be there mmol / mol and should there be a written of methodology IFCC, as well as the line no. 4 are HbA1c and you are following the methodology DCCT expressed in % correct. And after reading the article, people who have prediabetes may not be able to give advice that HbA1c levels are still good.
HbA1c [DCCT %]=HbA1c [IFCC%]x0,9148+2,125
HbA1c [IFCC%]=(HbA1c [DCCT %] - 2,125) / 0,9148
HbA1c [IFCC mmol/mol] = HbA1c[IFCC%]*10
HbA1c [DCCT %]=HbA1c [IFCC%]x0,9148+2,125
HbA1c [IFCC%]=(HbA1c [DCCT %] - 2,125) / 0,9148
HbA1c [IFCC mmol/mol] = HbA1c[IFCC%]*10