The project will measure frailty at a population level, and should deliver broad benefits across the aged care sector.

"This index can accurately predict an individual's risk of death and the likelihood that they might need long-term residential aged care," said ROSA and Flinders University Research Fellow Dr Jyoti Khadka.

"This is extremely important information because frailty can be treated or prevented. Identifying risk enables timely treatment through relatively simple means such as diet and physical and mental exercises."

Frailty is defined as a state of increased weakness and vulnerability to adverse health outcomes including falls, injuries, dependency, hospitalization, institutionalization and death.

"The assessment of a person's frailty at this important time in their aged care journey can be used to flag those who might benefit from additional support to lower their risk of adverse events like hospitalization," said team member Professor Renuka Visvanathan.

"There is increasing interest for assessment programs which use electronic systems such as our Australian aged care eligibility assessments, which is supported by My Aged Care. This can produce a frailty risk score by the end of an assessment with the older person."

The frailty index is already proving highly valuable from a research perspective across several ROSA projects.

"For instance, a study recently published in the journal Bone used the index to demonstrate how frailty changes the risk of death, functional limitation and higher level of aged care following a hip fracture," said Dr Khadka.

The frailty index was developed using historical data involving more than 900,000 older Australians. The process behind its development was published in the Medical Journal of Australia.