The latest large-scale data on healthy ageing


The 45 and Up Study is releasing new data which will help shape research and policy on health and ageing. Survey data from more than 17,000 participants are now available, with tens of thousands more survey responses to be released over the next two years.

A senior woman holding her baby grandson and smiling in a kitchen.

What is the Wave 4 survey?

The 45 and Up Study’s Wave 4 survey is providing large-scale data on how Australians use aged care, along with insights into health and ageing.

Every five years 45 and Up Study participants are sent a survey to identify health and lifestyle changes. Because of the large number of participants, these surveys are rolled out in phases. The Wave 4 survey is being conducted from 2023 to 2025. Previous 45 and Up Study surveys were conducted in 2018-2020 and 2012-2015, with the baseline survey of more than 250,000 Australians conducted in 2005-2009.

Participants in the Wave 4 survey answered more than 100 questions on their physical and mental health, on the health services they use, their lifestyle and general wellbeing. New questions in the Wave 4 survey include:

  • Use of community aged care, including what services were received at home
  • Out-of-pockets costs for aged care services
  • Barriers to accessing aged care
  • Participant’s disabilities and the services received for it, including funding from the National Disability Insurance Scheme (NDIS)
  • Experience of memory loss and diagnosis of cognitive impairment, dementia or Alzheimer’s
  • Sleep quality and sleep issues
  • Experience of financial stress and natural disasters.

How Wave 4 survey data can help you

  • Discover how older Australians use aged care, along with new insights on the impacts of disabilities and cognitive decline
  • Connect Wave 4 survey data with previous 45 and Up Study surveys to understand the impact of social determinants on health and how these change over time
  • Access linked data from the Medicare Benefits Schedule, Pharmaceutical Benefits Scheme, hospital, cancer registry and other datasets to track health outcomes
  • Gain insight into diverse cohorts including people with complex and chronic conditions and Australians living in rural and remote areas

Find out more

Contact us at to discuss your data needs or submit an Expression of Interest form.