Clinical Frailty Scale
This scale was developed using data from the Canadian Study of Health and Aging in Canada. It is based on the interviewer’s clinical judgment and constitutes a more subjective assessment of frailty.
The scale consists of 9 ordinal levels, ranging between 1 “very fit” and 9 “terminally ill”. In order to facilitate the interviewer in classifying patients, the scale shows a short-written description and a figure representing a theoretical silhouette of an individual that would fit in each level.
We considered frail patients those in levels 5-8. Levels 3-4 were considered as pre-frail and levels 1-2 as robust.