Florey Dementia Index (FDI) Predicts Alzheimer's Onset with Unprecedented Accuracy
A new predictive tool helps doctors and patients forecast the onset of mild cognitive impairment and Alzheimer's disease, enabling better planning for care and treatment.

Researchers have created a new tool called the Florey Dementia Index that can predict when someone will develop mild cognitive impairment or Alzheimer's disease with remarkable accuracy - within about 1.5 years for Alzheimer's and 2.8 years for MCI.
Scientists have developed and validated a new tool that can tell us when cognitive decline is likely to begin - something that hasn't been possible until now.
Florey Dementia Index (FDI)
The Florey Dementia Index (FDI) works by analyzing just two pieces of information: a person's age and their score on a clinical test called the Clinical Dementia Rating Sum of Boxes (CDR-SB). What makes this tool special is its simplicity and accuracy. It can predict when mild cognitive impairment will start within about 2.8 years, and when Alzheimer's disease will develop within about 1.5 years.
Instead of wondering and worrying about when cognitive decline might begin, patients and their doctors can now have a clearer timeline. This allows families to:
- Plan care arrangements while the person can still participate in decisions
- Start treatments at the optimal time
- Make financial and legal preparations
- Arrange support systems before they're urgently needed
The implications are significant:
- Doctors can time treatments better, especially new antibody drugs that work best when started early
- Families can make informed decisions about future care
- Healthcare systems can better plan resources
- Clinical trials can recruit participants more effectively
"A tool that accurately predicts age at onset could enable older adults to plan their dementia care while they are still capable of doing so, and it could also guide clinicians in the use of monoclonal antibody drugs by prioritizing patients with risk of more rapid cognitive decline for treatment."
This research represents a major step forward in Alzheimer's care. The tool has been tested on multiple groups of patients and consistently shows strong results, making it a reliable aid for healthcare providers and families facing cognitive decline.