Description

The Katz ADL Scale (Katz Activities of Daily Living Scale) is an assessment tool used to measure an individual’s ability to perform basic daily living activities (ADLs). It was developed by Dr. Sidney Katz and is widely used in clinics, hospitals, and research studies to evaluate personal autonomy, particularly among elderly individuals or people with limited abilities.

Analysis

The Katz ADL Scale evaluates the following activities:

Bathing refers to the ability to bathe or wash oneself.
Dressing refers to the ability to dress and undress.
Toileting measures the ability to use the toilet and maintain personal hygiene.
Transferring assesses the ability to move from bed or chair.
Feeding evaluates the ability to eat without assistance.
Mobility measures the ability to move in response to bodily needs.

Each activity is rated as independent, partially dependent, or fully dependent.

Purpose

The purpose of the Katz ADL Scale is to determine the individual’s ability to perform basic daily activities and to identify areas where assistance may be needed. It helps monitor progress in autonomy over time. It also supports the development of therapeutic programs and rehabilitation plans.

Scoring

Scoring on the Katz ADL Scale involves collecting data through either self-reporting or observation by the assessor regarding the person’s ability to perform each activity. Each activity is rated as independent, partially dependent, or fully dependent. These scores can be summed to provide an overall assessment of the individual’s functional status. Results may also be compared to norms or reference populations to evaluate relative ability.

References

Katz, S., Ford, A. B., Moskowitz, R. W., Jackson, B. A., & Jacobs, J. (1963). Studies of illness in the aged. The Index of ADL: A Standardized Measure of Biological and Psychological Function. Journal of the American Medical Association, 185(12), 914–919.
Katz, S. (1983). Assessing self-care in elders. Journal of Aging and Health, 3(1), 63–71.
Wade, D. T., & Hewer, R. L. (1994). Functional assessment for rehabilitation: Katz ADL scale. Clinical Rehabilitation, 8(2), 156–162.