Type 1 diabetes incidence

Type 1 diabetes is a lifelong autoimmune disease that most commonly has onset in childhood or adolescence. The cause is unknown, however it is believed to be an interaction of genetic and environmental factors. All people with type 1 diabetes will require insulin to manage their condition.

In 2016:

  • 2,625 people were diagnosed with type 1 diabetes—12 cases per 100,000 population, or around 1 in every 8,000 Australians
  • Incidence rate was higher in males than females—13 per 100,000 males compared with 10 per 100,000 females.
  • Three-in-five (3 in 5) (60%) people diagnosed with type 1 diabetes were under the age of 25, with the age of diagnosis peaking among those aged 10–14 (33 cases per 100,000 population).
  • Incidence rates were relatively similar among Aboriginal and Torres Strait Islander people and non-Indigenous Australians, across all socioeconomic groups and remoteness areas.
  • Incidence rate of type 1 diabetes varied across the states and territories, ranging from 7 cases per 100,000 population in the Northern Territory to 15 cases per 100,000 in Tasmania. 

Over a five year period (2012–2016):

  • Across Primary Health Network (PHN) areas, the highest incidence rates for type 1 diabetes were in Gippsland (Victoria), Western Victoria and Murray (Victoria) with 15–16 cases per 100,000 population.
  • At smaller geographical areas (Statistical Area Level 3) the highest incidence rates for type 1 diabetes were in Moira (Victoria), Barwon-West (Victoria) and Baw Baw (Victoria), with 22–24 cases per 100,000 population. These areas have type 1 diabetes incidence rates 2 times as high as the national average.

To explore the type 1 diabetes data by trends, age, and population groups (Indigenous status, remoteness and socioeconomic groups) see data visualisation type 1 diabetes (and the data table tabs trends by age and sex and population groups).

To explore type 1 diabetes data by geographic areas (state and territory, Primary Health Networks and statistical area level 3) see data visualisation type 1 diabetes: geographical areas (and the data table tabs State & Territory, PHN and SA3).