[Correlation between the assay of glycosylated hemoglobin A1c and fructosamine in diabetic patients submitted to a systematic control visit. Establishment of reference values].

The plasmatic glycosyl proteins levels were measured in fifty non diabetic volunteers and thirty five patients with diabetes mellitus by the fructosamine test. The upper limit for healthy volunteers was estimated to 25 mumoles/g protein. A higher fructosamine concentration and greater spread of values were observed in the diabetic group. A very good correlation was noted in the diabetic group between A1C hemoglobin and fructosamine concentrations. This test is very reproducible, inexpensive and should be a good alternative to the A1C hemoglobin determination in some physiologic or pathologic disorders.