• Risk Factors for Type 1 Diabetes

    A risk factor is something that increases your likelihood of getting a disease or condition. It is possible to develop type 1 diabetes with or without the risk factors listed below. There are no known definite risk factors. However, the more risk factors you have, the greater your likelihood of developing type 1 diabetes. The main risk factors include the following:

    Family History

    If you have a parent, brother, or sister with type 1 diabetes, you (or your child) are at greater risk of having it, too. Scientists continue to believe that genetic factors play a role in the development of type 1 diabetes, but which genes is unclear.

    Autoimmune Conditions

    Type 1 diabetes is an autoimmune disease, caused by the body's immune system attacking the insulin-producing cells of the pancreas. You may be at a greater risk of developing type 1 diabetes if you have another condition that affects the immune system, such as:

    Ethnic Background

    You are at an increased risk of type 1 diabetes if your ethnicity is:
    • Northern European
    • Mediterranean
    • African American
    • Hispanic
    • Native American

    Other Risk Factors

    Other factors that may increase your child's risk of type 1 diabetes include:
    • Cystic fibrosis
    • Bottle-feeding or short duration of breastfeeding
    • High birth weight
    • Obesity during childhood
    • Mothers age at childbirth (over 35 years)


    Causes of diabetes. National Institute of Diabetes and Digestive and Kidney Diseases website. Available at: http://www.niddk.nih.gov/health-information/health-topics/Diabetes/causes-diabetes/Pages/index.aspx. Updated June 2014. Accessed September 8, 2015.

    Diabetes mellitus type 1. EBSCO DynaMed website. Available at: EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed. Updated August 27, 2015. Accessed September 8, 2015.

    Schatz D, Krischer J, Horne G, et al. Islet cell antibodies predict insulin-dependent diabetes in United States school age children as powerfully as in unaffected relatives. J Clin Invest. 1994;93(6):2403-2407.

    TRIGR study: a new trial investigates environmental triggers in type 1 diabetes [press release]. Juvenile Diabetes Research Foundation International website. Available at: http://www.jdrf.org. August 7, 2002. Accessed December 31, 2012.

    Type 1 diabetes. American Diabetes Association website. Available at: http://www.diabetes.org/diabetes-basics/type-1/?loc=DropDownDB-type1. Accessed December 31, 2012.

    3/12/2010 DynaMed's Systematic Literature Surveillance. http://www.ebscohost.com/dynamed: Cardwell CR, Stene LC, Joner G, et al. Birthweight and the risk of childhood-onset type 1 diabetes: a meta-analysis of observational studies using individual patient data. Diabetologia. 2010;53(4):641-651.

    3/12/2010 DynaMed's Systematic Literature Surveillance. http://www.ebscohost.com/dynamed: Cardwell CR, Stene LC, Joner G, et al. Maternal age at birth and childhood type 1 diabetes: a pooled analysis of 30 observational studies. Diabetes. 2010;59(2):486-494.

    4/1/2011 DynaMed's Systematic Literature Surveillance. http://www.ebscohost.com/dynamed: Verbeeten KC, Elks CE, Daneman D, Ong KK. Association between childhood obesity and subsequent Type 1 diabetes: a systematic review and meta-analysis. Diabet Med. 2011;28(1):10-18.

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