The Survey of Disability, Ageing and Carers (SDAC) is an Australia-wide survey which collects information about the health of people, including:
- prevalence of disability
- the support needs of people with disability and/or aged 65 years or older
- the supports provided to people with disabilities and older people by informal carers
- demographic and socioeconomic characteristics
The Multi-Agency Data Integration Project (MADIP) is a partnership among Australian Government agencies to combine information on healthcare, education, government payments, personal income tax, and the Census to create a comprehensive picture of Australia over time. Information in MADIP is combined by linking person-level datasets to a central linking infrastructure, or ‘Spine’ that serves as a base dataset representing the ‘ever-resident’ population of Australia. The Spine is made up of the Medicare Consumer Directory, Personal Income Tax data and DOMINO Centrelink Administrative Data (DOMINO CAD). More information on MADIP, including how the data is kept secure and confidential and Privacy Impact Assessments for MADIP, is available on the ABS Website.
The ABS linked the 2018 SDAC with the MADIP in 2020. This provides potential rich insights about support needs of people with disability, older people and their carers. High-level policy issues that could be informed by this linkage include:
- the connection between people’s disability-related support needs and their use of government services
- the impact of disability, ageing and caring on social and economic participation
- patterns of healthcare service use for people with different functional impairments.
This paper summarises scope, coverage and quality of the 2018 SDAC linked dataset, and provides an overview of linkage methodology used and results achieved from the linkage process undertaken in 2020.