Report of the Committee of the Japan Diabetes Society on the Research of Fulminant and Acute-onset Type 1 Diabetes Mellitus: New Diagnostic Criteria of Fulminant Type 1 Diabetes Mellitus (2012)

We have revised a part of the diagnostic criteria for fulminant type 1 diabetes. The new criteria were set both to express the essence of this disease of rapid increase of patients' blood glucose and to be highly sensitive to reduce the misdiagnosis. After analyzing the data of 382 patients with newly-diagnosed fulminant type 1 diabetes, we adopted the HbA1c level of 8.7 % (NGSP value). The new criterion indicates 100 % of sensitivity and best value by ROC (receiver operation curve) analysis. In addition, we added a comment that This value (HbA1c < 8.7 % in NGSP) is not applicable for patients with previously diagnosed glucose intolerance'' on the new criteria and also a comment that Association with HLA DRB1*04:05-DQB1*04:01 is reported'' as a related finding. We did not revise the screening criteria and the other part of the diagnostic criteria, because they are still reliable.