Home Data Collection Tools Role Evaluation Outcomes Patients General Health Status Katz Index of Independence in Activities of Daily Living (Index of ADL)
Katz Index of Independence in Activities of Daily Living (Index of ADL) Print E-mail

Original Citation – Katz S, Ford AB, Moskowitz RW, Jackson BA, Jaffe MW. Studies of illness in the aged. The Index of ADL: A standarized measure of biological and psychological function. JAMA. 1963 Sep 21;185:914-9. View in PubMed

Contact Information – No information found.

Price & Availability – Published in original citation.

Brief Description of Instrument – Measures performance in bathing, dressing, going to the toilet, transferring, continence and feeding. Originally developed to study results of treatment and prognosis in aging and chronic illness.

Scale Format – 3 options for each of the 6 domains, pick the one response that best describes performance in the last 2 weeks.

Administration Technique – Observation by trained health care professional observers.

Scoring and Interpretation – See scoring guide published in original citation. Scoring assigns an overall letter grade for ADL performance ranging from A (most independent) to G (most dependent).

Construct Validity – Able to classify patients who had a wide range of illnesses. Testing demonstrated an ordered pattern in the performance of ADLs. Degree of assistance related to dependence ADL score.

Responsive to Change Over Time – Demonstrated responsiveness to recovery after hip fracture.

Content & Face Validity – Developed from observations of a large number of activities performed by a group of patients with fracture of the hip. Based on primarily on biological and psychosocial functions.

Strengths – Evaluates functional deficits of major importance to independent living, can also be used to focus and measure progress of rehabilitation efforts.

Limitations – Limited psychometric testing.

Published APN Studies using instrument –- Wanich CK, Sullivan-Marx EM, Gottlieb GL, Johnson JC. Functional status outcomes of a nursing intervention in hospitalized elderly. Image J Nurs Sch. 1992 Fall;24(3):201-7. View in PubMed

Related Methods Articles (Not Reviewed) – Katz,S., Down, T.D., Cash, H.R., et al. (1970) Progress in the Development of the Index of ADL. Gerontologist 10:20-30.
Katz, S. (1983). Assessing Self-Maintenance: Activities of Daily Living, Mobility and Instrumental Activities of Daily Living. Journal of the American Geriatrics Society; 31(12); 721-726.
Katz, S. & Stroud, M.W. (1989). Functional Assessment in Geriatrics: A Review of Progress and Directions. Journal of the American Geriatrics Society, 37; 267-271.

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