CSHA Clinical Frailty Scale

Purpose:
Tool for measuring frailty.

Rationale:
Previous frailty tools, although shown to predict death and institutionalization, have not gained acceptance among practising clinicians. Thus the need for a tool that would be easier to use.

The Tool:
An example and description is available at: http://geriatricresearch.medicine.dal.ca/clinical_frailty_scale.htm

Validation:
Correlation with the Frailty Index was high (Pearson coefficient 0.80, p < 0.01). Reliability was very high (intraclass correlation coefficient 0.97, p < 0.001). Hazard ratios for death and entry into an institutional facility showed increasing risk with increasing frailty. Each 1-category increment on the Clinical Frailty Scale significantly increased the medium-term risks of death (21.2%, 95% CI 12.5%–30.6%) and entry into institutional care (23.9%, 95% CI 8.8%–41.2%).

References:
Rockwood K, Song X, MacKnight C, Bergman H, Hogan D, McDowell I, Mitnitski A. A global clinical measure of fitness and frailty in elderly people. CMAJ 2005;173(5):489-95

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