SOF Frailty Index
Study of Osteoporotic Fractures Frailty Index: weight loss ≥ 5%, inability to rise 5× from a chair, and reduced energy.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Weight Loss5pct
- Yes
- Cannot Rise5x
- Yes
- Reduced Energy
- No
Result: SOF 2/3 — frail.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- 0
- Robust.
- 1
- Pre-frail.
- ≥ 2
- Frail.
What you enter
- Weight Loss5pct
- Cannot Rise5x
- Reduced Energy
How this is calculated
Ensrud KE, Ewing SK, Taylor BC, et al. Comparison of 2 frailty indexes for prediction of falls, disability, fractures, and death in older women. Arch Intern Med. 2008;168(4):382-389. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.