Senior Health Calculator
For Providers: Online Tool to Calculate Frailty Index (FI)
This online calculator applies the standard deficit-accumulation approach (see references below) to routinely collected items of a comprehensive geriatric assessment (CGA) to calculate the frailty index (FI). For calculation of FI, medical history and functional status sections must be completed; information on performance tests and nutritional status is not required (the calculator will use all available information).
Interpretation of CGA-FI
The CGA-FI can range from 0 to 1, with higher values indicating a greater degree of frailty.
CGA-FI
YOUR HEALTH DASHBOARD
Health Domains | Normal | Low Risk | Moderate Risk | High Risk | Insufficient Data |
1. Medical | |||||
2. Mobility | |||||
3. Muscle Strength | |||||
4. ADL disability | |||||
5. IADL disability | |||||
6. Cognition | |||||
7. Nutrition |
Browser Requirements
For best results, please use Chrome, Firefox, or Microsoft Edge web browsers. As Internet Explorer is no longer being supported, please use one of the aforementioned browsers.
Acknowledgment
Our research team is grateful to Andrew Song who originally designed and created this online calculator; and to geriatricians in the BIDMC Division of Gerontology and Min Keun Song, MD, MPH, CMD, for their valuable feedback.
If you have any questions and suggestions about this online calculator, please contact Dae Kim, MD, MPH, ScD (dkim2@bidmc.harvard.edu).
Frailty Index Calculation
- Rockwood K and Mitnitski A. Frailty Defined by Deficit Accumulation and Geriatric Medicine Defined by Frailty. Clin Geriatr Med 2011; 27: 17-26.
- Searle SD, Mitnitski A, Gahbauer EA, Gill TM, Rockwood K. A Standard Procedure for Creating a Frailty Index. BMC Geriatrics 2008; 8: 24.
Application to aortic valve replacement
- Kim DH, Afilalo J, Shi SM, Popma JJ, Khabbaz KR, Laham RJ, Grodstein F, Guibone K, Lux E, Lipsitz LA. Evaluation of Changes in Functional Status in the Year Following Aortic Valve Replacement. JAMA Intern Med. 2019; 179: 383-391.