Modified Frailty Index
Frailty index is an important predictive variable in emergency general surgery patients older than 60 years. The modified frailty index can be used to evaluate risk of both morbidity and mortality in these patients. Frailty index will be a valuable preoperative risk assessment tool for the acute care surgeon.
Research authors: Joseph S. Farhat, Vic Velanovich, Anthony J. Falvo, H. Mathilda Horst, Andrew Swartz, Joe H. Patton Jr. , Ilan S. Rubinfeld
Details Formula Study characteristics Files & References
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MeSH terms
  • Elder, Frail
  • Model type
    R-Script model (Calculation)
    No Formula defined yet
    Condition Formula

    Additional information

    Of 35,344 patients identified, 77.1% were white and 8.9% black; and 54.4% were female. The majority of cases (98.4%) were done under general anesthesia. The most common American Society of Anesthesiologists (ASA) class was 3 which accounted for 44.8% of the patients; only 1.4% of the patients were ASA class 1. The most common wound classes were clean-contaminated (32.4%) and dirty infected (34.1%). The number of patients decreased with each year of age: 4.6% were 60 years old, 1.4% were 89 years old, and 4.4% were 90 years or older

    Study Population

    Total population size: 35344

    Additional characteristics

    No additional characteristics defined
    Modified Frailty Index
    Refer to Intended Use for instructions before use
    Evidencio B.V., Irenesingel 19, 7481 GJ, Haaksbergen, the Netherlands

    Related files

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    Modified frailty index is: %

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    Outcome stratification

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    Conditional information

    Result interpretation

    A higher frailty index is associated with higher morbidity and higher mortality rates. 

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    Calculations alone should never dictate patient care, and are no substitute for professional judgement. See our full disclaimer.

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