A limitation of the Katz index of activities of daily living (ADLs)is that:

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The Katz index assigns an equal weight to all of the ADLs.The determination of a cutoff score is completely arbitrary.It is commonly accepted that a score of 4 indicates moderate impairment and a score of 2 or less indicates severe impairment.Any health care professional can complete the Katz index,although input from the interdisciplinary team is valuable.The Katz index does not address the cognitive abilities necessary to perform ADLs.It is not a self-report instrument; it is completed by the health care professional.

A Limitation of the Katz Index of Activities of Daily