Do you or a loved on have Diabetes Mellitus Type I and worry about the risk of other family members inheriting this disease. The genetic risk for Diabetes Type I was sited in a review course. For people with one sibling with diabetes Type I, the risk is about 10%. The risk is the same for twins that are not identical. For twins that are identical, the risk is about 50%. A woman with Diabetes has about a 4% chance of having a child with Diabetes Type I. If the father has type I Diabetes the risk to his offspring depends upon his age at onset. If he gets Diabetes before age 4 the risk to his offspring is 12%. Between ages 5-9 the risk deceases to 8.5%. Between ages of 10-14 the risk of his offspring developing diabetes type I is 6 %. Ages 15-19 the risk is 5%. A father with diabetes discovered between the ages of 20-30 has a risk of 3%. If either parent has signs of other autoimmune diseases that often coexist with diabetes type I such as Hashimoto’s disease (thyroid), Addison’s disease (insufficiency of the adrenal gland), Sprue, or other autoimmune diseases, the risk increases to about 50%. The reason for the different numbers in the Mother or the Father is not known. Do you or your children have Diabetes Type I. Please let us know so that we can see if our statistics are consistent with these numbers?
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