Back to Ask the Diabetes Team Ask the Diabetes Team

From Townsend, Montana, USA:

What are the odds of having three kids in the same family with type 1? Are there known environmental triggers (causes)?


There are some families where there is clearly a much stronger genetic component and some families where some unknown environmental trigger seems to be involved. The genetic implications are somewhat stronger, however. For the second child in the same family, i.e., brother or sister, the risk is about 2 to 5%. For a third child, the risk is closer to 1/2 to 1% probably. All this is somewhat of an accident of which genes are passed along from the parents to the child and, of course, whether or not they are identical or not to the susceptibility genes with the person with diabetes in the first place.


Original posting 28 Feb 2012
Posted to Genetics and Heredity


  Back to Ask the Diabetes Team Return to the Top of This Page

Last Updated: (none)
This Internet site provides information of a general nature and is designed for educational purposes only. If you have any concerns about your own health or the health of your child, you should always consult with a physician or other health care professional.

This site is published by T-1 Today, Inc. (d/b/a Children with Diabetes), a 501c3 not-for-profit organization, which is responsible for its contents. Our mission is to provide education and support to families living with type 1 diabetes.
By using this site, you agree to our Terms of Use, Legal Notice, and Privacy Policy.
© Children with Diabetes, Inc. 1995-2018. Comments and Feedback.