HLA Demographics Study in Adults With Type 1 Diabetes

Inclusion Criteria

• •1. Male and female participants aged ≥ 18 to ≤ 45 years, with type 1 DM meeting American Diabetes Association criteria at diagnosis:
• •1. Fasting glucose ≥ 126 mg/dL (7.0 mmol/L), or
• •2. 2-hour oral glucose tolerance test plasma glucose ≥ 200 mg/dL (11.0 mmol/L), or
• •3. Hemoglobin A1c ≥ 6.5%, or
• •4. Random plasma glucose ≥ 200 mg/dL (11.1 mmol/L) (with documented classic hyperglycemia symptoms or hyperglycemic crisis).
• •2. Date of T1D diagnosis within 2 months of the study visit.
• •3. Able and willing to provide written, informed consent as approved by the institutional review board (IRB). Participants must be able to consent directly; no other person or guardian may consent for them in this study.