About this tool
A frailty index measures how many health problems (“deficits”) a person has, out of a fixed list. The more deficits, the higher the index and the higher the risk of poor health outcomes. This calculator uses 62 items adapted from the Canadian Longitudinal Study on Aging, covering mobility, daily activities, general health, mood and chronic conditions.
How it is scored
Each item scores between 0 (no problem) and 1 (a full deficit). Some items score part of a deficit, for example 0.5 for needing some help with an activity. Your frailty index is the total of your item scores divided by the number of items you answered, so it ranges from 0 to 1. At least 50 of the 62 items must be answered to calculate a score.
Your index is then compared with people of the same age and sex. The percentile shows the percentage of people your age and sex who have a higher frailty index than you. A higher percentile is better.
| Category (compared with people your age and sex) | Percentile |
|---|---|
| Excellent | 80–99 |
| Good | 60–79 |
| Average | 40–59 |
| Fair | 20–39 |
| Poor | 1–19 |
The comparison data cover ages 45 to 85. If you are younger than 45 or older than 85, your result is compared with the nearest available age.
Comparison data
Your percentile compares your frailty index with Canadians of the same age and sex in the Canadian Longitudinal Study on Aging (CLSA), using the norms method of Pérez-Zepeda et al. 2021 (see References).
This research was made possible using the data/biospecimens collected by the Canadian Longitudinal Study on Aging (CLSA). Funding for the Canadian Longitudinal Study on Aging (CLSA) is provided by the Government of Canada through the Canadian Institutes of Health Research (CIHR) under grant reference: LSA 94473 and the Canada Foundation for Innovation, as well as the following provinces, Newfoundland, Nova Scotia, Quebec, Ontario, Manitoba, Alberta, and British Columbia. The CLSA is led by Drs. Parminder Raina, Christina Wolfson and Susan Kirkland. The authors gratefully acknowledge the time and commitment of the CLSA participants, without whom this research would not be possible.
The opinions expressed in this manuscript are the author’s own and do not reflect the views of the Canadian Longitudinal Study on Aging.
Privacy
Your answers stay in this browser tab until you close it or choose New assessment. Nothing is sent to a server.
Disclaimer
This calculator is for information only. It is not a diagnosis and is not medical advice. Please talk to your health care provider about your health.
More about the frailty index (Geriatric Medicine Research website)