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    Chief Complaint


    Organ System


    Patent Pending

    CSHA Clinical Frailty Scale (CFS)

    Measures frailty to predict survival.


    Launched during COVID-19 crisis. COVID-19 Resource Center.

    When to Use
    Why Use

    • The Clinical Frailty Scale (CFS) is a simple instrument that can be used by almost anyone to quantify degree of frailty, which is often difficult to define. 

    • The CFS correlates reasonably well with medium and long term outcomes (measured in years) of patients in terms of both mortality and need for institutional care.

    There are many frailty criteria, scores, and indices which can be lengthy and laborious to complete. The CFS has become used widely, likely due to its simplicity.



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    Creator Insights
    Dr. Kenneth Rockwood

    About the Creator

    Kenneth Rockwood, MD, MPA, FRCPC, is a professor of medicine at Dalhousie University in Nova Scotia, Canada. He is also an investigator at the Canadian Institutes of Health Research and the Kathryn Allen Weldon Professor of Alzheimer Research at Dalhousie. Dr. Rockwood’s primary research is focused on the complexity and clinical and epidemiological aspects of frailty, dementia, and delirium.

    To view Dr. Kenneth Rockwood's publications, visit PubMed

    Are you Dr. Kenneth Rockwood? Send us a message to review your photo and bio, and find out how to submit Creator Insights!
    MDCalc loves calculator creators – researchers who, through intelligent and often complex methods, discover tools that describe scientific facts that can then be applied in practice. These are real scientific discoveries about the nature of the human body, which can be invaluable to physicians taking care of patients.
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