Chronic health conditions are often associated with some level of disability. This section explores how many people with one or more of 8 selected chronic conditions have disability, and how severe this disability is.
Chronic conditions considered are:
- coronary heart disease
- arthritis and related disorders
- back pain and problems
These chronic conditions were selected because they are common, pose significant health problems, have been the focus of recent AIHW surveillance projects and, in many instances, action can be taken to prevent their occurrence. See chronic disease for more information.
What are chronic conditions?
Chronic conditions are generally characterised by their long-lasting and persistent effects. They are not usually immediately life threatening but are a common cause of premature death (AHMAC 2017). They have complex and multiple causes, usually come on gradually, and become more common with age. Chronic conditions are often associated with reduced quality of life and limitations in daily living.
Chronic health conditions are the leading cause of illness, disability and death in Australia. About 5.5 million people in Australia are affected by at least one of the 8 chronic health conditions covered in this section. For most (3.7 million), the condition is reported as their main health condition (the condition causing them the most problems) (ABS 2019).
Chronic conditions often coexist with some form of disability:
- half (50% or 2.8 million) of people with at least one selected chronic condition also have disability
- 40% (or 1.5 million) of people who have one selected chronic condition as their main condition also have disability (ABS 2019).
It cannot be assumed that disability is a consequence of a chronic health condition. As such, this section describes only the associations between disability and the selected chronic conditions and does not describe a causal relationship.
What is the relationship between health conditions and disability?
There is a 2-way relationship between health conditions and disability. People with a health condition are more likely to develop disability, and people with disability are more likely to develop a health condition.
Not everyone with a health condition will develop disability, and people with the same health condition who have disability may also experience different forms and level of disability. See Defining disability for more information on the relationship between health conditions and disability.
Survey of Disability, Ageing and Carers
Data in this section are sourced from the Australian Bureau of Statistics’ (ABS) 2018 Survey of Disability, Ageing and Carers (SDAC). The SDAC is the most detailed and comprehensive source of data on disability prevalence in Australia.
The SDAC considers that a person has disability if they have at least one of a list of limitations, restrictions or impairments, which has lasted, or is likely to last, for at least 6 months and restricts everyday activities.
The limitations are grouped into 10 activities associated with daily living – self-care, mobility, communication, cognitive or emotional tasks, health care, reading or writing tasks, transport, household chores, property maintenance, and meal preparation. The SDAC also identifies 2 other life areas in which people may experience restriction or difficulty as a result of disability – schooling and employment.
The severity of disability is defined by whether a person needs help, has difficulty, or uses aids or equipment with 3 core activities – self-care, mobility, and communication – and is grouped for mild, moderate, severe, and profound limitation. People who always or sometimes need help with one or more core activities, have difficulty understanding or being understood by family or friends, or can communicate more easily using sign language or other non-spoken forms of communication are referred to in this section as ‘people with severe or profound disability’.
The SDAC also collects data on long-term health conditions. For people who report more than one long-term condition, the condition causing the most problems is identified as the main condition. However, because the SDAC is designed to estimate the prevalence (or rate) of disability – not the prevalence of health conditions in a population – the prevalence of long-term conditions is generally lower than for other surveys. Also, information based on self-reported data relies on survey participants being aware of and accurately reporting their health conditions.
Prevalence of disability within selected chronic conditions
The prevalence of disability for each selected chronic condition, as a main condition, varies widely (Figure CHRONIC.1). Among selected chronic conditions, people with asthma are the least likely to have disability (9.8% or 81,000). People with emphysema (78% or 44,000) or stroke (64% or 55,000) are the most likely to have disability.