Modified 5-Item Frailty Index (mFI-5)
Modified Frailty Index-5 (Subramaniam 2018): a 0–5 deficit count over diabetes, hypertension, COPD, CHF, and functional dependence; ≥ 2 flags the frailty threshold.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Diabetes mellitus
- Yes
- Congestive heart failure
- Yes
Result: mFI-5 deficit count 2/5 — at or above the frailty threshold (≥ 2).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Deficits
- diabetes, hypertension on medication, COPD/pneumonia, congestive heart failure, and partially/totally dependent functional status — one point each, 0–5.
- Threshold
- a count of 2 or more is the commonly-cited frailty cutoff for elevated postoperative morbidity and mortality; performs comparably to the 11-item index.
What you enter
- Diabetes mellitus
- Hypertension requiring medication
- COPD or current pneumonia
- Congestive heart failure
- Partially or totally dependent functional status
How this is calculated
Subramaniam S, Aalberg JJ, Soriano RP, Divino CM. New 5-Factor Modified Frailty Index Using American College of Surgeons NSQIP Data. J Am Coll Surg. 2018;226(2):173-181. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.