05 February 2010

Who gets type 1 diabetes?

Type 1 diabetes usually begins before the age of 40, the peak incidence being around 14. Most people who have diabetes have type 2 diabetes (between 80 and 90%).


The percentage of the population with diabetes is highly variable among geographical regions and populations, so estimates are often inaccurate.

A recent figure is 180 million people around the world with diabetes, but most of them have type 2 diabetes. Type 1 diabetes probably comprises between 10 and 15% of all cases of diabetes.

Type 1 diabetes is usually diagnosed in children and young adults. Most often it begins before the age of 40, with the peak incidence being around 14 years old.

A strong family history is a definite risk factor for type 1 diabetes, although the way in which the disease is inherited is not clear. There is a strong association between type 1 diabetes and the HLA-D complex on the sixth chromosome.

Read more:
What is Type 1 diabetes?
Is diabetes hereditary?

For more information on care and support of diabetes visit Diabetes South Africa or phone them on 086 111 3913.

- (Diabetes SA/Health24, updated May 2009)


Read Health24’s Comments Policy

Comment on this story
Comments have been closed for this article.