Australian Institute of Health and Welfare (2022) Chronic kidney disease: Australian facts, AIHW, Australian Government, accessed 02 October 2022.
Australian Institute of Health and Welfare. (2022). Chronic kidney disease: Australian facts. Retrieved from https://www.aihw.gov.au/reports/chronic-kidney-disease/chronic-kidney-disease
Chronic kidney disease: Australian facts. Australian Institute of Health and Welfare, 23 August 2022, https://www.aihw.gov.au/reports/chronic-kidney-disease/chronic-kidney-disease
Australian Institute of Health and Welfare. Chronic kidney disease: Australian facts [Internet]. Canberra: Australian Institute of Health and Welfare, 2022 [cited 2022 Oct. 2]. Available from: https://www.aihw.gov.au/reports/chronic-kidney-disease/chronic-kidney-disease
Australian Institute of Health and Welfare (AIHW) 2022, Chronic kidney disease: Australian facts, viewed 2 October 2022, https://www.aihw.gov.au/reports/chronic-kidney-disease/chronic-kidney-disease
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Dialysis is the most common reason for hospitalisation in Australia, accounting for 14% of all hospitalisations in 2019–20 (1.5 million hospitalisations). Although the majority of people admitted to hospital for dialysis receive haemodialysis, a small number receive peritoneal dialysis. Data on this web page includes hospitalisations for both types of dialysis.
Hospitalisation data count the number of dialysis episodes rather than the number of people who receive dialysis. Most people undergoing dialysis attend 3 sessions per week (ANZDATA 2021).
For more information about people receiving dialysis see Dialysis.
Dialysis is an artificial way to remove waste and excess water from the blood, and regulate safe levels of circulating agents (such as potassium, calcium and phosphorous) in the body, a function usually performed by the kidneys. It is most often provided to treat chronic kidney failure, but is sometimes needed in cases of acute kidney failure, where the kidneys have been temporarily damaged due to illness or injury.
There are 2 types of dialysis: peritoneal dialysis and haemodialysis.
Peritoneal dialysis is an internal filtration process requiring the placement of a catheter (a thin, flexible plastic tube) into the abdomen, which remains in place as long as dialysis is required. Peritoneal dialysis uses the peritoneal membrane inside the abdominal cavity to filter the blood inside the body.
The process involves filling the abdomen with a sterile dialysis solution, called dialysate. Over 4–8 hours, waste is drawn out of the blood through the peritoneal membrane and into the dialysate. The used solution is then drained out of the body and replaced with a new solution. This process is called an exchange and takes around 30–45 minutes.
Between exchanges, the person is free to continue their usual activities. Peritoneal dialysis can be performed either by the person 3 or 4 times during the day (continuous ambulatory peritoneal dialysis) or automatically by a machine at night for about 8–10 hours while the person sleeps (automated peritoneal dialysis).
As the necessary equipment is portable, peritoneal dialysis can be performed almost anywhere. Individuals do not need to be in a hospital or clinic and can usually manage the procedure without assistance.
Haemodialysis is an external filtration process where the blood is diverted from the body to a machine which removes waste and excess fluid. It involves an initial procedure to join an artery and vein together with either a fistula or graft, that serves as the access point to the dialysis machine (dialyser). Once this access point is ready, haemodialysis sessions take place for an average of 4 to 5 hours 3 times per week (ANZDATA 2021). Once the blood has been filtered by the dialyser, it is returned to the body through the access point.
Haemodialysis can be done at home or in specialised dialysis centres located either in hospitals or satellite units. The process involves specialised plumbing installation for the dialyser and the person requires assistance to be connected to the machine. If performed at home, the procedure may be done more frequently for shorter periods or overnight.
Sources: KHA 2016a, 2016b.
In 2019–20, hospitalisation rates for dialysis as the principal diagnosis:
The line chart shows an increasing trend in age-standardised CKD hospitalisation rates between 2000-01 to 2019-20, when CKD was a principal diagnosis and a principal or additional diagnosis. Over this time, when CKD was a principal diagnosis, hospitalisations increased by 54%.
The number of hospitalisations for dialysis rose by 165% between 2000–01 and 2019–20, from 582,000 to over 1.5 million. After adjusting for changes in the age structure of the population over this time, this equated to an increase of 72%. Note that this does not capture trends in dialysis performed outside of hospitals.
The rate of hospitalisations for dialysis among males was consistently higher than for females over the period, with both showing similar respective rates of increase (Figure 2).
The line chart shows the age-standardised trend in hospitalisations for dialysis from 2000-01 to 2019-20, by sex. Between 2000-01 and 2019-20, hospitalisations for dialysis increased by 72%. Males had higher rates of dialysis than females across this period.
In 2019–20, there were 257,000 hospitalisations for dialysis (as the principal diagnosis) among Aboriginal and Torres Strait Islander people. Indigenous Australians were hospitalised for dialysis at a higher rate than non-Indigenous Australians (30,000 and 5,100 per 100,000 population).
Indigenous females were hospitalised for dialysis at a rate of 34,500 per 100,000 population, compared with 3,700 per 100,000 population for non-Indigenous females. Indigenous males were hospitalised for dialysis at a rate of 25,600 per 100,000 population, compared with 6,600 per 100,000 for non-Indigenous males.
After adjusting for differences in the age structure of these populations:
In 2019–20, hospitalisation rates for dialysis (as the principal diagnosis) varied by remoteness and socioeconomic area (Figure 3).
After adjusting for differences in the age structure of the population groups:
See Geographical variation in disease: diabetes, cardiovascular and chronic kidney disease for more information on dialysis hospitalisations by state/territory, Population Health Network and Population Health Area.
The bar chart shows rates of hospitalisation for dialysis by sex based on Aboriginal and Torres Strait Islander status, remoteness area and socioeconomic area. Indigenous people had rates of hospitalisation for dialysis 10.7 times higher than non-Indigenous people. Hospitalisation rates for dialysis across remoteness areas were similar for all areas except Remote and Very remote regions, where people were hospitalised for dialysis at rates 4.8 times as high as those living in Major cities. Hospitalisations for dialysis increased gradually by socioeconomic area, with people living in the least disadvantaged socioeconomic areas having the lowest rates of hospitalisation for dialysis, and those living in the most disadvantaged areas having the highest. Males were hospitalised at higher rates than females across all measures except for Indigenous females and females living in Remote and Very remote areas.
For more information on hospitalisation for dialysis for Indigenous people, see: Profiles of Aboriginal and Torres Strait Islander people with kidney disease
ANZDATA (Australia and New Zealand Dialysis and Transplant Registry) (2021) ANZDATA 44th Annual Report 2021, ANZDATA website, accessed 30 June 2022.
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