Type 2 diabetes

There were around 1,040,000 hospitalisations with type 2 diabetes recorded as the principal and/or additional diagnosis in 2016–17―31,700 (3% of type 2 diabetes hospitalisations) as the principal diagnosis and 1,006,000 as an additional diagnosis.

Age and sex

In 2016­–17, type 2 hospitalisation rates (as the principal and/or additional diagnosis):

  • Were overall 1.4 times as high for males as females (4,300 and 3,100 per 100,000 per population). Age-specific rates were higher among males than females from 45 years onwards (Figure 4).  
  • Increased with age, with the majority (87%) of type 2 diabetes hospitalisations occurring in those 55 years and over. Type 2 diabetes hospitalisation rates were highest among males aged 85 and over (31,400 per 100,000) and females aged 75–84 (19,700 per 100,000) (Figure 4).

Figure 4: Type 2 diabetes hospitalisations (principal and/or additional diagnosis), by age and sex, 2016–17

The bar chart shows the increasing rate of type 2 diabetes hospitalisations (principal and/or additional diagnosis) by age, peaking in the 75–84 and 85+ age groups with an average of 24,000 hospitalisations per 100,000 population. The type 2 diabetes hospitalisation rate was more than 1.5 times higher for males than females in each of the age groups from 65–74 and over.

Chart: AIHW. Source: AIHW analysis of the National Hospital Morbidity Database. (Data table)

Variation among population groups

In 2016–17, type 2 diabetes hospitalisation rates (as the principal and/or additional diagnosis) increased with remoteness and socioeconomic disadvantage. Rates were:

  • More than twice as high in Remote and very remote areas compared with Major cities. This gap was much larger for females than males―almost 3 times as high for females (8,600 compared with 3,000 per 100,000 population) and 1.5 times as high for males (6,600 compared with 4,300 per 100,000) (Figure 5).
  • Almost twice as high in the lowest socioeconomic group compared with the highest socioeconomic group. This gap was higher for females than males—more than 2 times as high for females (4,400 compared with 2,000 per 100,000) and 1.7 times as high for males (5,600 compared with 3,200 per 100,000) (Figure 5). 

Figure 5: Type 2 hospitalisation rates (principal and/or additional diagnosis), by remoteness and socioeconomic group, 2016–17

The bar chart shows type 2 diabetes hospitalisations (principal and/or additional diagnosis) in 2016–17 were notably higher in Remote and very remote areas, particularly for females with a hospitalisation rate of 8,557 per 100,000 population being almost 3 times that of other areas. The rate for males was 6,581 per 100,000 population (1.5 times higher than for males living in other areas). The chart also shows the type 2 diabetes hospitalisation rate increased with the level of socioeconomic disadvantage in 2016–17. The rate per 100,000 population increased from 3,200 to 5,564 for males and 1,995 to 4,398 for females in the least to most disadvantaged group, respectively.

Note: Age-standardised to the 2001 Australian Standard Population.
Chart: AIHW. Source: AIHW analysis of the National Hospital Morbidity Database. (Data table)

Aboriginal and Torres Strait Islander people

In 2016–17, there were around 60,000 hospitalisations for type 2 diabetes (as the principal and/or additional diagnosis) among Aboriginal and Torres Strait Islander people, a rate of 8,000 per 100,000 population.

After adjusting for differences in the age structure of the populations:

  • The rate among Indigenous Australians was overall 4 times as high as for non-Indigenous Australians.
  • The disparity in type 2 diabetes hospitalisation rates between Indigenous Australians and non-Indigenous Australians was greater for females than males―6 times as high for females and 3 times as high for males.