Back to Ask the Diabetes Team Ask the Diabetes Team

Do you know what the approximate percentages are that a Type 1 diabetic father and a non-diabetic mother with no history of Type 1 diabetes in their families will have a child with diabetes? Say, if they had only one, that is. I am sort of curious. I had heard it was low, but I wasn't for sure.


The risk of developing Type 1 diabetes is:

  • General population 0.4%
  • Offspring of diabetic father 6.1%
  • Offspring of diabetic mother 2%
  • Offspring of diabetic mother more than 25 years old at birth 1.1%
  • Offspring of diabetic mother less than 25 years old at birth 3.6%
  • Offspring if both diabetic parents 30%

The American Diabetes Association has additional information about the genetics of diabetes.


  1. Spielman RS, Bair MP,Clerget-Darpoux F., Genetic Analysis of IDDM: summary of GAW5 IDDM results, Genet. Epidemiol. 1989;6:43-58
  2. Thomson G, Robinson WP, Kuhner MK et al. Genetic heterogeneity, modes of inheritance adn risk estimates for a joint study of caucasians with insulin-dependent diabetes mellitus, Am. J. Hum. Genet. 1988;43:799-816


Original posting 31 Oct 96


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

Last Updated: Tuesday April 06, 2010 15:08:52
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.