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By Mayo Clinic staffAnyone who has diabetes is at risk of a diabetic coma. Risk factors for the conditions that may lead to a diabetic coma vary, however.
For example, diabetic ketoacidosis is most common in people who have type 1 diabetes. Diabetic hyperosmolar syndrome is most common in older adults who have type 2 diabetes — especially those who don't monitor their blood sugar or who don't know they have diabetes.