The Clincial Frailty Scale

License Agreement:

The Clinical Frailty Scale (CFS) was introduced in the second clinical examination of the Canadian Study of Health and Aging (CSHA) as a way to summarize the overall level of fitness or frailty of an older adult after they had been evaluated by an experienced clinician (Rockwood et al., 2005).

Although introduced as a means of summarizing a multidimensional assessment in an epidemiological setting, the CFS quickly evolved for clinical use, and has been widely taken up as a judgement-based tool to screen for frailty and to broadly stratify degrees of fitness and frailty. It is not a questionnaire, but a way to summarize information from a clinical encounter with an older person, in a context in which it is useful to screen for and roughly quantify an individual’s overall health status.

Non-commercial educational, clinical, and research uses of the CFS usually don’t require a license agreement, but because the CFS is copyrighted, the OCIE team reviews all requests for permission to use the CFS to assess whether a license agreement is required.

Learn more about the CFS and request permission to use it here.


  • Dr. Kenneth Rockwood, MD, MPA, FRCPC
    Department of Medicine, Department of Geriatric Medicine, Department of Community Health and Epidemiology, School of Health Administration